Home / 129,974.18-179,355.80-75,521.52

Finding the Fourth Proportional to 129,974.18, 179,355.80 and 75,521.52

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Solution

The fourth proportional to 129,974.18, 179,355.80 and 75,521.52 is: 104,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,974.18 : 179,355.80 = 75,521.52 : x
  2. Step 2: Convert to fraction form
    129,974.18/179,355.80 = 75,521.52/x
  3. Step 3: Cross multiply
    129,974.18x = 179,355.80 × 75,521.52
  4. Step 4: Simplify right side
    129,974.18x = 13,545,222,825.62
  5. Step 5: Solve for x
    x = 13,545,222,825.62/129,974.18
  6. Step 6: Final answer
    x = 104,214.72

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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.