Home / 123,605.20-185,338.68-49,715.92

Finding the Fourth Proportional to 123,605.20, 185,338.68 and 49,715.92

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Solution

The fourth proportional to 123,605.20, 185,338.68 and 49,715.92 is: 74,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,605.20 : 185,338.68 = 49,715.92 : x
  2. Step 2: Convert to fraction form
    123,605.20/185,338.68 = 49,715.92/x
  3. Step 3: Cross multiply
    123,605.20x = 185,338.68 × 49,715.92
  4. Step 4: Simplify right side
    123,605.20x = 9,214,282,987.79
  5. Step 5: Solve for x
    x = 9,214,282,987.79/123,605.20
  6. Step 6: Final answer
    x = 74,546.08

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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.