Home / 130,932.20-180,755.48-88,136.70

Finding the Fourth Proportional to 130,932.20, 180,755.48 and 88,136.70

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Solution

The fourth proportional to 130,932.20, 180,755.48 and 88,136.70 is: 121,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,932.20 : 180,755.48 = 88,136.70 : x
  2. Step 2: Convert to fraction form
    130,932.20/180,755.48 = 88,136.70/x
  3. Step 3: Cross multiply
    130,932.20x = 180,755.48 × 88,136.70
  4. Step 4: Simplify right side
    130,932.20x = 15,931,191,514.12
  5. Step 5: Solve for x
    x = 15,931,191,514.12/130,932.20
  6. Step 6: Final answer
    x = 121,675.12

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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.