Home / 129,865.92-179,205.12-73,282.56

Finding the Fourth Proportional to 129,865.92, 179,205.12 and 73,282.56

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Solution

The fourth proportional to 129,865.92, 179,205.12 and 73,282.56 is: 101,124.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865.92 : 179,205.12 = 73,282.56 : x
  2. Step 2: Convert to fraction form
    129,865.92/179,205.12 = 73,282.56/x
  3. Step 3: Cross multiply
    129,865.92x = 179,205.12 × 73,282.56
  4. Step 4: Simplify right side
    129,865.92x = 13,132,609,958.71
  5. Step 5: Solve for x
    x = 13,132,609,958.71/129,865.92
  6. Step 6: Final answer
    x = 101,124.37

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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.