Home / 125,178.30-172,743.18-71,462.04

Finding the Fourth Proportional to 125,178.30, 172,743.18 and 71,462.04

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Solution

The fourth proportional to 125,178.30, 172,743.18 and 71,462.04 is: 98,615.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,178.30 : 172,743.18 = 71,462.04 : x
  2. Step 2: Convert to fraction form
    125,178.30/172,743.18 = 71,462.04/x
  3. Step 3: Cross multiply
    125,178.30x = 172,743.18 × 71,462.04
  4. Step 4: Simplify right side
    125,178.30x = 12,344,580,038.89
  5. Step 5: Solve for x
    x = 12,344,580,038.89/125,178.30
  6. Step 6: Final answer
    x = 98,615.97

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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.