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Finding the Fourth Proportional to 157,442.27, 217,262.12 and 89,449.81

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Solution

The fourth proportional to 157,442.27, 217,262.12 and 89,449.81 is: 123,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,442.27 : 217,262.12 = 89,449.81 : x
  2. Step 2: Convert to fraction form
    157,442.27/217,262.12 = 89,449.81/x
  3. Step 3: Cross multiply
    157,442.27x = 217,262.12 × 89,449.81
  4. Step 4: Simplify right side
    157,442.27x = 19,434,055,354.20
  5. Step 5: Solve for x
    x = 19,434,055,354.20/157,442.27
  6. Step 6: Final answer
    x = 123,436.07

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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.