Home / 181,966.56-272,979.12-76,801.20

Finding the Fourth Proportional to 181,966.56, 272,979.12 and 76,801.20

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Solution

The fourth proportional to 181,966.56, 272,979.12 and 76,801.20 is: 115,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,966.56 : 272,979.12 = 76,801.20 : x
  2. Step 2: Convert to fraction form
    181,966.56/272,979.12 = 76,801.20/x
  3. Step 3: Cross multiply
    181,966.56x = 272,979.12 × 76,801.20
  4. Step 4: Simplify right side
    181,966.56x = 20,965,123,990.94
  5. Step 5: Solve for x
    x = 20,965,123,990.94/181,966.56
  6. Step 6: Final answer
    x = 115,214.16

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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.