Home / 118,207.67-163,139.13-72,294.17

Finding the Fourth Proportional to 118,207.67, 163,139.13 and 72,294.17

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Solution

The fourth proportional to 118,207.67, 163,139.13 and 72,294.17 is: 99,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,207.67 : 163,139.13 = 72,294.17 : x
  2. Step 2: Convert to fraction form
    118,207.67/163,139.13 = 72,294.17/x
  3. Step 3: Cross multiply
    118,207.67x = 163,139.13 × 72,294.17
  4. Step 4: Simplify right side
    118,207.67x = 11,794,007,182.18
  5. Step 5: Solve for x
    x = 11,794,007,182.18/118,207.67
  6. Step 6: Final answer
    x = 99,773.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.