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Finding the Fourth Proportional to 181,494.80, 272,334.24 and 81,634.72

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Solution

The fourth proportional to 181,494.80, 272,334.24 and 81,634.72 is: 122,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,494.80 : 272,334.24 = 81,634.72 : x
  2. Step 2: Convert to fraction form
    181,494.80/272,334.24 = 81,634.72/x
  3. Step 3: Cross multiply
    181,494.80x = 272,334.24 × 81,634.72
  4. Step 4: Simplify right side
    181,494.80x = 22,231,929,428.81
  5. Step 5: Solve for x
    x = 22,231,929,428.81/181,494.80
  6. Step 6: Final answer
    x = 122,493.48

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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.