Home / 108,988.39-163,330.32-52,813.59

Finding the Fourth Proportional to 108,988.39, 163,330.32 and 52,813.59

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Solution

The fourth proportional to 108,988.39, 163,330.32 and 52,813.59 is: 79,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,988.39 : 163,330.32 = 52,813.59 : x
  2. Step 2: Convert to fraction form
    108,988.39/163,330.32 = 52,813.59/x
  3. Step 3: Cross multiply
    108,988.39x = 163,330.32 × 52,813.59
  4. Step 4: Simplify right side
    108,988.39x = 8,626,061,518.71
  5. Step 5: Solve for x
    x = 8,626,061,518.71/108,988.39
  6. Step 6: Final answer
    x = 79,146.61

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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.