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Finding the Fourth Proportional to 185,451.06, 278,053.68 and 67,107

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Solution

The fourth proportional to 185,451.06, 278,053.68 and 67,107 is: 100,616.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,451.06 : 278,053.68 = 67,107 : x
  2. Step 2: Convert to fraction form
    185,451.06/278,053.68 = 67,107/x
  3. Step 3: Cross multiply
    185,451.06x = 278,053.68 × 67,107
  4. Step 4: Simplify right side
    185,451.06x = 18,659,348,303.76
  5. Step 5: Solve for x
    x = 18,659,348,303.76/185,451.06
  6. Step 6: Final answer
    x = 100,616.02

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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.