Home / 135,988.47-187,672.95-82,275.75

Finding the Fourth Proportional to 135,988.47, 187,672.95 and 82,275.75

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Solution

The fourth proportional to 135,988.47, 187,672.95 and 82,275.75 is: 113,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,988.47 : 187,672.95 = 82,275.75 : x
  2. Step 2: Convert to fraction form
    135,988.47/187,672.95 = 82,275.75/x
  3. Step 3: Cross multiply
    135,988.47x = 187,672.95 × 82,275.75
  4. Step 4: Simplify right side
    135,988.47x = 15,440,932,715.96
  5. Step 5: Solve for x
    x = 15,440,932,715.96/135,988.47
  6. Step 6: Final answer
    x = 113,545.90

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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.