Home / 181,819.40-272,145.90-129,331.40

Finding the Fourth Proportional to 181,819.40, 272,145.90 and 129,331.40

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Solution

The fourth proportional to 181,819.40, 272,145.90 and 129,331.40 is: 193,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,819.40 : 272,145.90 = 129,331.40 : x
  2. Step 2: Convert to fraction form
    181,819.40/272,145.90 = 129,331.40/x
  3. Step 3: Cross multiply
    181,819.40x = 272,145.90 × 129,331.40
  4. Step 4: Simplify right side
    181,819.40x = 35,197,010,251.26
  5. Step 5: Solve for x
    x = 35,197,010,251.26/181,819.40
  6. Step 6: Final answer
    x = 193,582.26

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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.