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Finding the Fourth Proportional to 181,322.13, 271,909.38 and 81,455.50

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Solution

The fourth proportional to 181,322.13, 271,909.38 and 81,455.50 is: 122,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,322.13 : 271,909.38 = 81,455.50 : x
  2. Step 2: Convert to fraction form
    181,322.13/271,909.38 = 81,455.50/x
  3. Step 3: Cross multiply
    181,322.13x = 271,909.38 × 81,455.50
  4. Step 4: Simplify right side
    181,322.13x = 22,148,513,143.04
  5. Step 5: Solve for x
    x = 22,148,513,143.04/181,322.13
  6. Step 6: Final answer
    x = 122,150.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.