Home / 130,121.69-179,565.59-73,531.85

Finding the Fourth Proportional to 130,121.69, 179,565.59 and 73,531.85

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Solution

The fourth proportional to 130,121.69, 179,565.59 and 73,531.85 is: 101,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,121.69 : 179,565.59 = 73,531.85 : x
  2. Step 2: Convert to fraction form
    130,121.69/179,565.59 = 73,531.85/x
  3. Step 3: Cross multiply
    130,121.69x = 179,565.59 × 73,531.85
  4. Step 4: Simplify right side
    130,121.69x = 13,203,788,763.55
  5. Step 5: Solve for x
    x = 13,203,788,763.55/130,121.69
  6. Step 6: Final answer
    x = 101,472.62

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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.