Home / 129,842.88-179,192.19-72,493.50

Finding the Fourth Proportional to 129,842.88, 179,192.19 and 72,493.50

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Solution

The fourth proportional to 129,842.88, 179,192.19 and 72,493.50 is: 100,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,842.88 : 179,192.19 = 72,493.50 : x
  2. Step 2: Convert to fraction form
    129,842.88/179,192.19 = 72,493.50/x
  3. Step 3: Cross multiply
    129,842.88x = 179,192.19 × 72,493.50
  4. Step 4: Simplify right side
    129,842.88x = 12,990,269,025.77
  5. Step 5: Solve for x
    x = 12,990,269,025.77/129,842.88
  6. Step 6: Final answer
    x = 100,046.06

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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.