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Finding the Fourth Proportional to 138,382.37, 207,412.25 and 63,510.42

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Solution

The fourth proportional to 138,382.37, 207,412.25 and 63,510.42 is: 95,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,382.37 : 207,412.25 = 63,510.42 : x
  2. Step 2: Convert to fraction form
    138,382.37/207,412.25 = 63,510.42/x
  3. Step 3: Cross multiply
    138,382.37x = 207,412.25 × 63,510.42
  4. Step 4: Simplify right side
    138,382.37x = 13,172,838,793.09
  5. Step 5: Solve for x
    x = 13,172,838,793.09/138,382.37
  6. Step 6: Final answer
    x = 95,191.60

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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.