Home / 102,131,567.80-153,197,351.70-81,976,175.80

Finding the Fourth Proportional to 102,131,567.80, 153,197,351.70 and 81,976,175.80

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Solution

The fourth proportional to 102,131,567.80, 153,197,351.70 and 81,976,175.80 is: 122,964,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131,567.80 : 153,197,351.70 = 81,976,175.80 : x
  2. Step 2: Convert to fraction form
    102,131,567.80/153,197,351.70 = 81,976,175.80/x
  3. Step 3: Cross multiply
    102,131,567.80x = 153,197,351.70 × 81,976,175.80
  4. Step 4: Simplify right side
    102,131,567.80x = 12,558,533,035,053,628
  5. Step 5: Solve for x
    x = 12,558,533,035,053,628/102,131,567.80
  6. Step 6: Final answer
    x = 122,964,263.70

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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.