Home / 125,375.28-187,774.92-105,399.60

Finding the Fourth Proportional to 125,375.28, 187,774.92 and 105,399.60

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Solution

The fourth proportional to 125,375.28, 187,774.92 and 105,399.60 is: 157,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,375.28 : 187,774.92 = 105,399.60 : x
  2. Step 2: Convert to fraction form
    125,375.28/187,774.92 = 105,399.60/x
  3. Step 3: Cross multiply
    125,375.28x = 187,774.92 × 105,399.60
  4. Step 4: Simplify right side
    125,375.28x = 19,791,401,458.03
  5. Step 5: Solve for x
    x = 19,791,401,458.03/125,375.28
  6. Step 6: Final answer
    x = 157,857.29

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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.