Home / 120,755.61-181,229.09-63,869.90

Finding the Fourth Proportional to 120,755.61, 181,229.09 and 63,869.90

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Solution

The fourth proportional to 120,755.61, 181,229.09 and 63,869.90 is: 95,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,755.61 : 181,229.09 = 63,869.90 : x
  2. Step 2: Convert to fraction form
    120,755.61/181,229.09 = 63,869.90/x
  3. Step 3: Cross multiply
    120,755.61x = 181,229.09 × 63,869.90
  4. Step 4: Simplify right side
    120,755.61x = 11,575,082,629.90
  5. Step 5: Solve for x
    x = 11,575,082,629.90/120,755.61
  6. Step 6: Final answer
    x = 95,855.44

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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.