Home / 109,304.20-163,956.34-84,380.64

Finding the Fourth Proportional to 109,304.20, 163,956.34 and 84,380.64

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Solution

The fourth proportional to 109,304.20, 163,956.34 and 84,380.64 is: 126,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,304.20 : 163,956.34 = 84,380.64 : x
  2. Step 2: Convert to fraction form
    109,304.20/163,956.34 = 84,380.64/x
  3. Step 3: Cross multiply
    109,304.20x = 163,956.34 × 84,380.64
  4. Step 4: Simplify right side
    109,304.20x = 13,834,739,917.26
  5. Step 5: Solve for x
    x = 13,834,739,917.26/109,304.20
  6. Step 6: Final answer
    x = 126,570.98

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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.