Home / 185,618.72-278,471.28-80,448.32

Finding the Fourth Proportional to 185,618.72, 278,471.28 and 80,448.32

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Solution

The fourth proportional to 185,618.72, 278,471.28 and 80,448.32 is: 120,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,618.72 : 278,471.28 = 80,448.32 : x
  2. Step 2: Convert to fraction form
    185,618.72/278,471.28 = 80,448.32/x
  3. Step 3: Cross multiply
    185,618.72x = 278,471.28 × 80,448.32
  4. Step 4: Simplify right side
    185,618.72x = 22,402,546,644.25
  5. Step 5: Solve for x
    x = 22,402,546,644.25/185,618.72
  6. Step 6: Final answer
    x = 120,691.20

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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.