Home / 135,708.44-187,278.78-75,283.02

Finding the Fourth Proportional to 135,708.44, 187,278.78 and 75,283.02

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Solution

The fourth proportional to 135,708.44, 187,278.78 and 75,283.02 is: 103,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,708.44 : 187,278.78 = 75,283.02 : x
  2. Step 2: Convert to fraction form
    135,708.44/187,278.78 = 75,283.02/x
  3. Step 3: Cross multiply
    135,708.44x = 187,278.78 × 75,283.02
  4. Step 4: Simplify right side
    135,708.44x = 14,098,912,140.32
  5. Step 5: Solve for x
    x = 14,098,912,140.32/135,708.44
  6. Step 6: Final answer
    x = 103,891.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.