Home / 135,559.92-187,072.68-75,139.64

Finding the Fourth Proportional to 135,559.92, 187,072.68 and 75,139.64

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Solution

The fourth proportional to 135,559.92, 187,072.68 and 75,139.64 is: 103,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,559.92 : 187,072.68 = 75,139.64 : x
  2. Step 2: Convert to fraction form
    135,559.92/187,072.68 = 75,139.64/x
  3. Step 3: Cross multiply
    135,559.92x = 187,072.68 × 75,139.64
  4. Step 4: Simplify right side
    135,559.92x = 14,056,573,829.04
  5. Step 5: Solve for x
    x = 14,056,573,829.04/135,559.92
  6. Step 6: Final answer
    x = 103,692.70

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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.