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Finding the Fourth Proportional to 185,341.68, 278,034.12 and 67,068.72

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Solution

The fourth proportional to 185,341.68, 278,034.12 and 67,068.72 is: 100,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,341.68 : 278,034.12 = 67,068.72 : x
  2. Step 2: Convert to fraction form
    185,341.68/278,034.12 = 67,068.72/x
  3. Step 3: Cross multiply
    185,341.68x = 278,034.12 × 67,068.72
  4. Step 4: Simplify right side
    185,341.68x = 18,647,392,544.73
  5. Step 5: Solve for x
    x = 18,647,392,544.73/185,341.68
  6. Step 6: Final answer
    x = 100,610.90

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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.