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Finding the Fourth Proportional to 134,747.60, 202,121.40 and 123,812.60

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Solution

The fourth proportional to 134,747.60, 202,121.40 and 123,812.60 is: 185,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,747.60 : 202,121.40 = 123,812.60 : x
  2. Step 2: Convert to fraction form
    134,747.60/202,121.40 = 123,812.60/x
  3. Step 3: Cross multiply
    134,747.60x = 202,121.40 × 123,812.60
  4. Step 4: Simplify right side
    134,747.60x = 25,025,176,049.64
  5. Step 5: Solve for x
    x = 25,025,176,049.64/134,747.60
  6. Step 6: Final answer
    x = 185,718.90

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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.