Home / 123,940.11-185,876.96-53,802.75

Finding the Fourth Proportional to 123,940.11, 185,876.96 and 53,802.75

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Solution

The fourth proportional to 123,940.11, 185,876.96 and 53,802.75 is: 80,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.11 : 185,876.96 = 53,802.75 : x
  2. Step 2: Convert to fraction form
    123,940.11/185,876.96 = 53,802.75/x
  3. Step 3: Cross multiply
    123,940.11x = 185,876.96 × 53,802.75
  4. Step 4: Simplify right side
    123,940.11x = 10,000,691,340.63
  5. Step 5: Solve for x
    x = 10,000,691,340.63/123,940.11
  6. Step 6: Final answer
    x = 80,689.71

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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.