Home / 215,844.90-323,767.35-132,785.70

Finding the Fourth Proportional to 215,844.90, 323,767.35 and 132,785.70

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Solution

The fourth proportional to 215,844.90, 323,767.35 and 132,785.70 is: 199,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,844.90 : 323,767.35 = 132,785.70 : x
  2. Step 2: Convert to fraction form
    215,844.90/323,767.35 = 132,785.70/x
  3. Step 3: Cross multiply
    215,844.90x = 323,767.35 × 132,785.70
  4. Step 4: Simplify right side
    215,844.90x = 42,991,674,206.90
  5. Step 5: Solve for x
    x = 42,991,674,206.90/215,844.90
  6. Step 6: Final answer
    x = 199,178.55

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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.