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Finding the Fourth Proportional to 121,957.65, 182,963.36 and 36,565.11

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Solution

The fourth proportional to 121,957.65, 182,963.36 and 36,565.11 is: 54,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,957.65 : 182,963.36 = 36,565.11 : x
  2. Step 2: Convert to fraction form
    121,957.65/182,963.36 = 36,565.11/x
  3. Step 3: Cross multiply
    121,957.65x = 182,963.36 × 36,565.11
  4. Step 4: Simplify right side
    121,957.65x = 6,690,075,475.78
  5. Step 5: Solve for x
    x = 6,690,075,475.78/121,957.65
  6. Step 6: Final answer
    x = 54,855.73

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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.