Home / 213,481.64-320,423.10-108,376.04

Finding the Fourth Proportional to 213,481.64, 320,423.10 and 108,376.04

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Solution

The fourth proportional to 213,481.64, 320,423.10 and 108,376.04 is: 162,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,481.64 : 320,423.10 = 108,376.04 : x
  2. Step 2: Convert to fraction form
    213,481.64/320,423.10 = 108,376.04/x
  3. Step 3: Cross multiply
    213,481.64x = 320,423.10 × 108,376.04
  4. Step 4: Simplify right side
    213,481.64x = 34,726,186,702.52
  5. Step 5: Solve for x
    x = 34,726,186,702.52/213,481.64
  6. Step 6: Final answer
    x = 162,665.92

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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.