Home / 123,691.12-185,393.04-56,991.24

Finding the Fourth Proportional to 123,691.12, 185,393.04 and 56,991.24

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Solution

The fourth proportional to 123,691.12, 185,393.04 and 56,991.24 is: 85,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,691.12 : 185,393.04 = 56,991.24 : x
  2. Step 2: Convert to fraction form
    123,691.12/185,393.04 = 56,991.24/x
  3. Step 3: Cross multiply
    123,691.12x = 185,393.04 × 56,991.24
  4. Step 4: Simplify right side
    123,691.12x = 10,565,779,236.97
  5. Step 5: Solve for x
    x = 10,565,779,236.97/123,691.12
  6. Step 6: Final answer
    x = 85,420.68

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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.