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Finding the Fourth Proportional to 138,341.58, 207,479.16 and 63,414.96

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Solution

The fourth proportional to 138,341.58, 207,479.16 and 63,414.96 is: 95,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,341.58 : 207,479.16 = 63,414.96 : x
  2. Step 2: Convert to fraction form
    138,341.58/207,479.16 = 63,414.96/x
  3. Step 3: Cross multiply
    138,341.58x = 207,479.16 × 63,414.96
  4. Step 4: Simplify right side
    138,341.58x = 13,157,282,632.23
  5. Step 5: Solve for x
    x = 13,157,282,632.23/138,341.58
  6. Step 6: Final answer
    x = 95,107.22

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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.