Home / 121,385.10-182,034.45-54,857.10

Finding the Fourth Proportional to 121,385.10, 182,034.45 and 54,857.10

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Solution

The fourth proportional to 121,385.10, 182,034.45 and 54,857.10 is: 82,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,385.10 : 182,034.45 = 54,857.10 : x
  2. Step 2: Convert to fraction form
    121,385.10/182,034.45 = 54,857.10/x
  3. Step 3: Cross multiply
    121,385.10x = 182,034.45 × 54,857.10
  4. Step 4: Simplify right side
    121,385.10x = 9,985,882,027.10
  5. Step 5: Solve for x
    x = 9,985,882,027.10/121,385.10
  6. Step 6: Final answer
    x = 82,266.13

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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.