Home / 215,581.01-323,356.46-80,619.39

Finding the Fourth Proportional to 215,581.01, 323,356.46 and 80,619.39

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Solution

The fourth proportional to 215,581.01, 323,356.46 and 80,619.39 is: 120,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,581.01 : 323,356.46 = 80,619.39 : x
  2. Step 2: Convert to fraction form
    215,581.01/323,356.46 = 80,619.39/x
  3. Step 3: Cross multiply
    215,581.01x = 323,356.46 × 80,619.39
  4. Step 4: Simplify right side
    215,581.01x = 26,068,800,154.66
  5. Step 5: Solve for x
    x = 26,068,800,154.66/215,581.01
  6. Step 6: Final answer
    x = 120,923.46

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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.