Home / 138,331.20-207,496.80-136,362.90

Finding the Fourth Proportional to 138,331.20, 207,496.80 and 136,362.90

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Solution

The fourth proportional to 138,331.20, 207,496.80 and 136,362.90 is: 204,544.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,331.20 : 207,496.80 = 136,362.90 : x
  2. Step 2: Convert to fraction form
    138,331.20/207,496.80 = 136,362.90/x
  3. Step 3: Cross multiply
    138,331.20x = 207,496.80 × 136,362.90
  4. Step 4: Simplify right side
    138,331.20x = 28,294,865,388.72
  5. Step 5: Solve for x
    x = 28,294,865,388.72/138,331.20
  6. Step 6: Final answer
    x = 204,544.35

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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.