Home / 187,819.49-281,731.38-67,885.55

Finding the Fourth Proportional to 187,819.49, 281,731.38 and 67,885.55

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Solution

The fourth proportional to 187,819.49, 281,731.38 and 67,885.55 is: 101,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819.49 : 281,731.38 = 67,885.55 : x
  2. Step 2: Convert to fraction form
    187,819.49/281,731.38 = 67,885.55/x
  3. Step 3: Cross multiply
    187,819.49x = 281,731.38 × 67,885.55
  4. Step 4: Simplify right side
    187,819.49x = 19,125,488,274.90
  5. Step 5: Solve for x
    x = 19,125,488,274.90/187,819.49
  6. Step 6: Final answer
    x = 101,829.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.