Home / 125,353.24-172,999.91-71,645.97

Finding the Fourth Proportional to 125,353.24, 172,999.91 and 71,645.97

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Solution

The fourth proportional to 125,353.24, 172,999.91 and 71,645.97 is: 98,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,353.24 : 172,999.91 = 71,645.97 : x
  2. Step 2: Convert to fraction form
    125,353.24/172,999.91 = 71,645.97/x
  3. Step 3: Cross multiply
    125,353.24x = 172,999.91 × 71,645.97
  4. Step 4: Simplify right side
    125,353.24x = 12,394,746,361.86
  5. Step 5: Solve for x
    x = 12,394,746,361.86/125,353.24
  6. Step 6: Final answer
    x = 98,878.55

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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.