Home / 157,116.13-216,825.16-89,135.97

Finding the Fourth Proportional to 157,116.13, 216,825.16 and 89,135.97

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Solution

The fourth proportional to 157,116.13, 216,825.16 and 89,135.97 is: 123,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,116.13 : 216,825.16 = 89,135.97 : x
  2. Step 2: Convert to fraction form
    157,116.13/216,825.16 = 89,135.97/x
  3. Step 3: Cross multiply
    157,116.13x = 216,825.16 × 89,135.97
  4. Step 4: Simplify right side
    157,116.13x = 19,326,920,760.70
  5. Step 5: Solve for x
    x = 19,326,920,760.70/157,116.13
  6. Step 6: Final answer
    x = 123,010.42

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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.