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Finding the Fourth Proportional to 121,447.79, 182,171.70 and 42,562.01

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Solution

The fourth proportional to 121,447.79, 182,171.70 and 42,562.01 is: 63,843.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,447.79 : 182,171.70 = 42,562.01 : x
  2. Step 2: Convert to fraction form
    121,447.79/182,171.70 = 42,562.01/x
  3. Step 3: Cross multiply
    121,447.79x = 182,171.70 × 42,562.01
  4. Step 4: Simplify right side
    121,447.79x = 7,753,593,717.12
  5. Step 5: Solve for x
    x = 7,753,593,717.12/121,447.79
  6. Step 6: Final answer
    x = 63,843.02

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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.