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Finding the Fourth Proportional to 145,159.92, 217,718.76 and 45,296.88

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Solution

The fourth proportional to 145,159.92, 217,718.76 and 45,296.88 is: 67,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.92 : 217,718.76 = 45,296.88 : x
  2. Step 2: Convert to fraction form
    145,159.92/217,718.76 = 45,296.88/x
  3. Step 3: Cross multiply
    145,159.92x = 217,718.76 × 45,296.88
  4. Step 4: Simplify right side
    145,159.92x = 9,861,980,545.47
  5. Step 5: Solve for x
    x = 9,861,980,545.47/145,159.92
  6. Step 6: Final answer
    x = 67,938.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.