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Finding the Fourth Proportional to 157,624, 217,491.36 and 93,967.72

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Solution

The fourth proportional to 157,624, 217,491.36 and 93,967.72 is: 129,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,624 : 217,491.36 = 93,967.72 : x
  2. Step 2: Convert to fraction form
    157,624/217,491.36 = 93,967.72/x
  3. Step 3: Cross multiply
    157,624x = 217,491.36 × 93,967.72
  4. Step 4: Simplify right side
    157,624x = 20,437,167,218.90
  5. Step 5: Solve for x
    x = 20,437,167,218.90/157,624
  6. Step 6: Final answer
    x = 129,657.71

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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.