Home / 123,404.85-185,125.38-39,136.92

Finding the Fourth Proportional to 123,404.85, 185,125.38 and 39,136.92

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Solution

The fourth proportional to 123,404.85, 185,125.38 and 39,136.92 is: 58,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,404.85 : 185,125.38 = 39,136.92 : x
  2. Step 2: Convert to fraction form
    123,404.85/185,125.38 = 39,136.92/x
  3. Step 3: Cross multiply
    123,404.85x = 185,125.38 × 39,136.92
  4. Step 4: Simplify right side
    123,404.85x = 7,245,237,187.03
  5. Step 5: Solve for x
    x = 7,245,237,187.03/123,404.85
  6. Step 6: Final answer
    x = 58,711.12

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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.