Home / 130,872.32-180,422.40-88,363.52

Finding the Fourth Proportional to 130,872.32, 180,422.40 and 88,363.52

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Solution

The fourth proportional to 130,872.32, 180,422.40 and 88,363.52 is: 121,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,872.32 : 180,422.40 = 88,363.52 : x
  2. Step 2: Convert to fraction form
    130,872.32/180,422.40 = 88,363.52/x
  3. Step 3: Cross multiply
    130,872.32x = 180,422.40 × 88,363.52
  4. Step 4: Simplify right side
    130,872.32x = 15,942,758,350.85
  5. Step 5: Solve for x
    x = 15,942,758,350.85/130,872.32
  6. Step 6: Final answer
    x = 121,819.18

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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.