Home / 135,687.39-187,126.10-84,704.82

Finding the Fourth Proportional to 135,687.39, 187,126.10 and 84,704.82

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Solution

The fourth proportional to 135,687.39, 187,126.10 and 84,704.82 is: 116,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,687.39 : 187,126.10 = 84,704.82 : x
  2. Step 2: Convert to fraction form
    135,687.39/187,126.10 = 84,704.82/x
  3. Step 3: Cross multiply
    135,687.39x = 187,126.10 × 84,704.82
  4. Step 4: Simplify right side
    135,687.39x = 15,850,482,194.28
  5. Step 5: Solve for x
    x = 15,850,482,194.28/135,687.39
  6. Step 6: Final answer
    x = 116,816.18

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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.