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Finding the Fourth Proportional to 185,885.98, 278,672.22 and 80,625.70

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Solution

The fourth proportional to 185,885.98, 278,672.22 and 80,625.70 is: 120,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,885.98 : 278,672.22 = 80,625.70 : x
  2. Step 2: Convert to fraction form
    185,885.98/278,672.22 = 80,625.70/x
  3. Step 3: Cross multiply
    185,885.98x = 278,672.22 × 80,625.70
  4. Step 4: Simplify right side
    185,885.98x = 22,468,142,808.05
  5. Step 5: Solve for x
    x = 22,468,142,808.05/185,885.98
  6. Step 6: Final answer
    x = 120,870.56

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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.