Home / 125,288.76-172,899.18-67,928.52

Finding the Fourth Proportional to 125,288.76, 172,899.18 and 67,928.52

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Solution

The fourth proportional to 125,288.76, 172,899.18 and 67,928.52 is: 93,741.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,288.76 : 172,899.18 = 67,928.52 : x
  2. Step 2: Convert to fraction form
    125,288.76/172,899.18 = 67,928.52/x
  3. Step 3: Cross multiply
    125,288.76x = 172,899.18 × 67,928.52
  4. Step 4: Simplify right side
    125,288.76x = 11,744,785,406.61
  5. Step 5: Solve for x
    x = 11,744,785,406.61/125,288.76
  6. Step 6: Final answer
    x = 93,741.73

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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.