Home / 185,395.18-278,114.38-67,122.22

Finding the Fourth Proportional to 185,395.18, 278,114.38 and 67,122.22

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Solution

The fourth proportional to 185,395.18, 278,114.38 and 67,122.22 is: 100,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,395.18 : 278,114.38 = 67,122.22 : x
  2. Step 2: Convert to fraction form
    185,395.18/278,114.38 = 67,122.22/x
  3. Step 3: Cross multiply
    185,395.18x = 278,114.38 × 67,122.22
  4. Step 4: Simplify right side
    185,395.18x = 18,667,654,599.52
  5. Step 5: Solve for x
    x = 18,667,654,599.52/185,395.18
  6. Step 6: Final answer
    x = 100,691.15

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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.