Home / 130,008.20-195,012.30-115,233.80

Finding the Fourth Proportional to 130,008.20, 195,012.30 and 115,233.80

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Solution

The fourth proportional to 130,008.20, 195,012.30 and 115,233.80 is: 172,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,008.20 : 195,012.30 = 115,233.80 : x
  2. Step 2: Convert to fraction form
    130,008.20/195,012.30 = 115,233.80/x
  3. Step 3: Cross multiply
    130,008.20x = 195,012.30 × 115,233.80
  4. Step 4: Simplify right side
    130,008.20x = 22,472,008,375.74
  5. Step 5: Solve for x
    x = 22,472,008,375.74/130,008.20
  6. Step 6: Final answer
    x = 172,850.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.