Home / 138,631.32-207,924.12-49,868.28

Finding the Fourth Proportional to 138,631.32, 207,924.12 and 49,868.28

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Solution

The fourth proportional to 138,631.32, 207,924.12 and 49,868.28 is: 74,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,631.32 : 207,924.12 = 49,868.28 : x
  2. Step 2: Convert to fraction form
    138,631.32/207,924.12 = 49,868.28/x
  3. Step 3: Cross multiply
    138,631.32x = 207,924.12 × 49,868.28
  4. Step 4: Simplify right side
    138,631.32x = 10,368,818,234.91
  5. Step 5: Solve for x
    x = 10,368,818,234.91/138,631.32
  6. Step 6: Final answer
    x = 74,794.20

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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.