Home / 86,136.30-129,204.45-44,145.90

Finding the Fourth Proportional to 86,136.30, 129,204.45 and 44,145.90

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Solution

The fourth proportional to 86,136.30, 129,204.45 and 44,145.90 is: 66,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.30 : 129,204.45 = 44,145.90 : x
  2. Step 2: Convert to fraction form
    86,136.30/129,204.45 = 44,145.90/x
  3. Step 3: Cross multiply
    86,136.30x = 129,204.45 × 44,145.90
  4. Step 4: Simplify right side
    86,136.30x = 5,703,846,729.26
  5. Step 5: Solve for x
    x = 5,703,846,729.26/86,136.30
  6. Step 6: Final answer
    x = 66,218.85

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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.