Home / 123,921.28-185,632.44-57,269.62

Finding the Fourth Proportional to 123,921.28, 185,632.44 and 57,269.62

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Solution

The fourth proportional to 123,921.28, 185,632.44 and 57,269.62 is: 85,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,921.28 : 185,632.44 = 57,269.62 : x
  2. Step 2: Convert to fraction form
    123,921.28/185,632.44 = 57,269.62/x
  3. Step 3: Cross multiply
    123,921.28x = 185,632.44 × 57,269.62
  4. Step 4: Simplify right side
    123,921.28x = 10,631,099,298.47
  5. Step 5: Solve for x
    x = 10,631,099,298.47/123,921.28
  6. Step 6: Final answer
    x = 85,789.13

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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.