Home / 220,586.62-304,436.56-129,937.90

Finding the Fourth Proportional to 220,586.62, 304,436.56 and 129,937.90

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Solution

The fourth proportional to 220,586.62, 304,436.56 and 129,937.90 is: 179,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,586.62 : 304,436.56 = 129,937.90 : x
  2. Step 2: Convert to fraction form
    220,586.62/304,436.56 = 129,937.90/x
  3. Step 3: Cross multiply
    220,586.62x = 304,436.56 × 129,937.90
  4. Step 4: Simplify right side
    220,586.62x = 39,557,847,289.62
  5. Step 5: Solve for x
    x = 39,557,847,289.62/220,586.62
  6. Step 6: Final answer
    x = 179,330.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.