Home / 125,335.36-172,951.86-71,609.68

Finding the Fourth Proportional to 125,335.36, 172,951.86 and 71,609.68

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Solution

The fourth proportional to 125,335.36, 172,951.86 and 71,609.68 is: 98,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,335.36 : 172,951.86 = 71,609.68 : x
  2. Step 2: Convert to fraction form
    125,335.36/172,951.86 = 71,609.68/x
  3. Step 3: Cross multiply
    125,335.36x = 172,951.86 × 71,609.68
  4. Step 4: Simplify right side
    125,335.36x = 12,385,027,350.00
  5. Step 5: Solve for x
    x = 12,385,027,350.00/125,335.36
  6. Step 6: Final answer
    x = 98,815.11

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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.