Home / 109,273.20-163,909.80-108,236.40

Finding the Fourth Proportional to 109,273.20, 163,909.80 and 108,236.40

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Solution

The fourth proportional to 109,273.20, 163,909.80 and 108,236.40 is: 162,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,273.20 : 163,909.80 = 108,236.40 : x
  2. Step 2: Convert to fraction form
    109,273.20/163,909.80 = 108,236.40/x
  3. Step 3: Cross multiply
    109,273.20x = 163,909.80 × 108,236.40
  4. Step 4: Simplify right side
    109,273.20x = 17,741,006,676.72
  5. Step 5: Solve for x
    x = 17,741,006,676.72/109,273.20
  6. Step 6: Final answer
    x = 162,354.60

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1.5x scale

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.