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Finding the Fourth Proportional to 157,693.84, 217,620.84 and 89,708.56

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Solution

The fourth proportional to 157,693.84, 217,620.84 and 89,708.56 is: 123,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,693.84 : 217,620.84 = 89,708.56 : x
  2. Step 2: Convert to fraction form
    157,693.84/217,620.84 = 89,708.56/x
  3. Step 3: Cross multiply
    157,693.84x = 217,620.84 × 89,708.56
  4. Step 4: Simplify right side
    157,693.84x = 19,522,452,182.39
  5. Step 5: Solve for x
    x = 19,522,452,182.39/157,693.84
  6. Step 6: Final answer
    x = 123,799.71

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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.