Home / 143,965.20-198,621-96,248.64

Finding the Fourth Proportional to 143,965.20, 198,621 and 96,248.64

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Solution

The fourth proportional to 143,965.20, 198,621 and 96,248.64 is: 132,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,965.20 : 198,621 = 96,248.64 : x
  2. Step 2: Convert to fraction form
    143,965.20/198,621 = 96,248.64/x
  3. Step 3: Cross multiply
    143,965.20x = 198,621 × 96,248.64
  4. Step 4: Simplify right side
    143,965.20x = 19,117,001,125.44
  5. Step 5: Solve for x
    x = 19,117,001,125.44/143,965.20
  6. Step 6: Final answer
    x = 132,789.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.