Home / 185,380.77-278,154.23-85,487.42

Finding the Fourth Proportional to 185,380.77, 278,154.23 and 85,487.42

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Solution

The fourth proportional to 185,380.77, 278,154.23 and 85,487.42 is: 128,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,380.77 : 278,154.23 = 85,487.42 : x
  2. Step 2: Convert to fraction form
    185,380.77/278,154.23 = 85,487.42/x
  3. Step 3: Cross multiply
    185,380.77x = 278,154.23 × 85,487.42
  4. Step 4: Simplify right side
    185,380.77x = 23,778,687,484.79
  5. Step 5: Solve for x
    x = 23,778,687,484.79/185,380.77
  6. Step 6: Final answer
    x = 128,269.44

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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.