Home / 123,491.13-185,217.30-39,240.20

Finding the Fourth Proportional to 123,491.13, 185,217.30 and 39,240.20

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Solution

The fourth proportional to 123,491.13, 185,217.30 and 39,240.20 is: 58,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.13 : 185,217.30 = 39,240.20 : x
  2. Step 2: Convert to fraction form
    123,491.13/185,217.30 = 39,240.20/x
  3. Step 3: Cross multiply
    123,491.13x = 185,217.30 × 39,240.20
  4. Step 4: Simplify right side
    123,491.13x = 7,267,962,969.37
  5. Step 5: Solve for x
    x = 7,267,962,969.37/123,491.13
  6. Step 6: Final answer
    x = 58,854.13

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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.