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Finding the Fourth Proportional to 157,629, 217,498.26 and 93,972.72

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Solution

The fourth proportional to 157,629, 217,498.26 and 93,972.72 is: 129,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,629 : 217,498.26 = 93,972.72 : x
  2. Step 2: Convert to fraction form
    157,629/217,498.26 = 93,972.72/x
  3. Step 3: Cross multiply
    157,629x = 217,498.26 × 93,972.72
  4. Step 4: Simplify right side
    157,629x = 20,438,903,087.47
  5. Step 5: Solve for x
    x = 20,438,903,087.47/157,629
  6. Step 6: Final answer
    x = 129,664.61

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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.