Home / 145,332-217,972.80-40,122.72

Finding the Fourth Proportional to 145,332, 217,972.80 and 40,122.72

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Solution

The fourth proportional to 145,332, 217,972.80 and 40,122.72 is: 60,177.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,332 : 217,972.80 = 40,122.72 : x
  2. Step 2: Convert to fraction form
    145,332/217,972.80 = 40,122.72/x
  3. Step 3: Cross multiply
    145,332x = 217,972.80 × 40,122.72
  4. Step 4: Simplify right side
    145,332x = 8,745,661,622.02
  5. Step 5: Solve for x
    x = 8,745,661,622.02/145,332
  6. Step 6: Final answer
    x = 60,177.12

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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.