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Finding the Fourth Proportional to 121,182.71, 181,692.05 and 42,253.88

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Solution

The fourth proportional to 121,182.71, 181,692.05 and 42,253.88 is: 63,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,182.71 : 181,692.05 = 42,253.88 : x
  2. Step 2: Convert to fraction form
    121,182.71/181,692.05 = 42,253.88/x
  3. Step 3: Cross multiply
    121,182.71x = 181,692.05 × 42,253.88
  4. Step 4: Simplify right side
    121,182.71x = 7,677,192,957.92
  5. Step 5: Solve for x
    x = 7,677,192,957.92/121,182.71
  6. Step 6: Final answer
    x = 63,352.22

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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.