Home / 123,961.28-185,838.28-57,449.08

Finding the Fourth Proportional to 123,961.28, 185,838.28 and 57,449.08

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Solution

The fourth proportional to 123,961.28, 185,838.28 and 57,449.08 is: 86,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,961.28 : 185,838.28 = 57,449.08 : x
  2. Step 2: Convert to fraction form
    123,961.28/185,838.28 = 57,449.08/x
  3. Step 3: Cross multiply
    123,961.28x = 185,838.28 × 57,449.08
  4. Step 4: Simplify right side
    123,961.28x = 10,676,238,214.78
  5. Step 5: Solve for x
    x = 10,676,238,214.78/123,961.28
  6. Step 6: Final answer
    x = 86,125.59

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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.