Home / 125,022.29-172,558.86-79,691.24

Finding the Fourth Proportional to 125,022.29, 172,558.86 and 79,691.24

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Solution

The fourth proportional to 125,022.29, 172,558.86 and 79,691.24 is: 109,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,022.29 : 172,558.86 = 79,691.24 : x
  2. Step 2: Convert to fraction form
    125,022.29/172,558.86 = 79,691.24/x
  3. Step 3: Cross multiply
    125,022.29x = 172,558.86 × 79,691.24
  4. Step 4: Simplify right side
    125,022.29x = 13,751,429,658.94
  5. Step 5: Solve for x
    x = 13,751,429,658.94/125,022.29
  6. Step 6: Final answer
    x = 109,991.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.