Home / 135,752.19-187,335.15-75,321.53

Finding the Fourth Proportional to 135,752.19, 187,335.15 and 75,321.53

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Solution

The fourth proportional to 135,752.19, 187,335.15 and 75,321.53 is: 103,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.19 : 187,335.15 = 75,321.53 : x
  2. Step 2: Convert to fraction form
    135,752.19/187,335.15 = 75,321.53/x
  3. Step 3: Cross multiply
    135,752.19x = 187,335.15 × 75,321.53
  4. Step 4: Simplify right side
    135,752.19x = 14,110,370,120.78
  5. Step 5: Solve for x
    x = 14,110,370,120.78/135,752.19
  6. Step 6: Final answer
    x = 103,942.12

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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.