Home / 108,864,117.70-163,296,176.55-81,990,261.70

Finding the Fourth Proportional to 108,864,117.70, 163,296,176.55 and 81,990,261.70

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Solution

The fourth proportional to 108,864,117.70, 163,296,176.55 and 81,990,261.70 is: 122,985,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,864,117.70 : 163,296,176.55 = 81,990,261.70 : x
  2. Step 2: Convert to fraction form
    108,864,117.70/163,296,176.55 = 81,990,261.70/x
  3. Step 3: Cross multiply
    108,864,117.70x = 163,296,176.55 × 81,990,261.70
  4. Step 4: Simplify right side
    108,864,117.70x = 13,388,696,249,943,904
  5. Step 5: Solve for x
    x = 13,388,696,249,943,904/108,864,117.70
  6. Step 6: Final answer
    x = 122,985,392.55

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.