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Finding the Fourth Proportional to 121,882.68, 182,801.61 and 55,306.80

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Solution

The fourth proportional to 121,882.68, 182,801.61 and 55,306.80 is: 82,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,882.68 : 182,801.61 = 55,306.80 : x
  2. Step 2: Convert to fraction form
    121,882.68/182,801.61 = 55,306.80/x
  3. Step 3: Cross multiply
    121,882.68x = 182,801.61 × 55,306.80
  4. Step 4: Simplify right side
    121,882.68x = 10,110,172,083.95
  5. Step 5: Solve for x
    x = 10,110,172,083.95/121,882.68
  6. Step 6: Final answer
    x = 82,950.03

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1.5x scale

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.