Home / 135,593.95-187,121.07-75,165.79

Finding the Fourth Proportional to 135,593.95, 187,121.07 and 75,165.79

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Solution

The fourth proportional to 135,593.95, 187,121.07 and 75,165.79 is: 103,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,593.95 : 187,121.07 = 75,165.79 : x
  2. Step 2: Convert to fraction form
    135,593.95/187,121.07 = 75,165.79/x
  3. Step 3: Cross multiply
    135,593.95x = 187,121.07 × 75,165.79
  4. Step 4: Simplify right side
    135,593.95x = 14,065,103,052.20
  5. Step 5: Solve for x
    x = 14,065,103,052.20/135,593.95
  6. Step 6: Final answer
    x = 103,729.58

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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.