Home / 181,252.80-271,749.60-81,331.20

Finding the Fourth Proportional to 181,252.80, 271,749.60 and 81,331.20

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Solution

The fourth proportional to 181,252.80, 271,749.60 and 81,331.20 is: 121,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,252.80 : 271,749.60 = 81,331.20 : x
  2. Step 2: Convert to fraction form
    181,252.80/271,749.60 = 81,331.20/x
  3. Step 3: Cross multiply
    181,252.80x = 271,749.60 × 81,331.20
  4. Step 4: Simplify right side
    181,252.80x = 22,101,721,067.52
  5. Step 5: Solve for x
    x = 22,101,721,067.52/181,252.80
  6. Step 6: Final answer
    x = 121,938.65

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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.