Home / 215,132.04-322,593.42-129,830.80

Finding the Fourth Proportional to 215,132.04, 322,593.42 and 129,830.80

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Solution

The fourth proportional to 215,132.04, 322,593.42 and 129,830.80 is: 194,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,132.04 : 322,593.42 = 129,830.80 : x
  2. Step 2: Convert to fraction form
    215,132.04/322,593.42 = 129,830.80/x
  3. Step 3: Cross multiply
    215,132.04x = 322,593.42 × 129,830.80
  4. Step 4: Simplify right side
    215,132.04x = 41,882,561,793.34
  5. Step 5: Solve for x
    x = 41,882,561,793.34/215,132.04
  6. Step 6: Final answer
    x = 194,683.05

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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.