Home / 129,806.08-179,148.82-75,346.61

Finding the Fourth Proportional to 129,806.08, 179,148.82 and 75,346.61

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Solution

The fourth proportional to 129,806.08, 179,148.82 and 75,346.61 is: 103,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806.08 : 179,148.82 = 75,346.61 : x
  2. Step 2: Convert to fraction form
    129,806.08/179,148.82 = 75,346.61/x
  3. Step 3: Cross multiply
    129,806.08x = 179,148.82 × 75,346.61
  4. Step 4: Simplify right side
    129,806.08x = 13,498,255,188.39
  5. Step 5: Solve for x
    x = 13,498,255,188.39/129,806.08
  6. Step 6: Final answer
    x = 103,987.85

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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.