Home / 154,565.28-213,198.48-120,972.96

Finding the Fourth Proportional to 154,565.28, 213,198.48 and 120,972.96

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Solution

The fourth proportional to 154,565.28, 213,198.48 and 120,972.96 is: 166,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,565.28 : 213,198.48 = 120,972.96 : x
  2. Step 2: Convert to fraction form
    154,565.28/213,198.48 = 120,972.96/x
  3. Step 3: Cross multiply
    154,565.28x = 213,198.48 × 120,972.96
  4. Step 4: Simplify right side
    154,565.28x = 25,791,251,193.10
  5. Step 5: Solve for x
    x = 25,791,251,193.10/154,565.28
  6. Step 6: Final answer
    x = 166,863.16

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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.