Home / 209,195.64-288,691.02-113,704.20

Finding the Fourth Proportional to 209,195.64, 288,691.02 and 113,704.20

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Solution

The fourth proportional to 209,195.64, 288,691.02 and 113,704.20 is: 156,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,195.64 : 288,691.02 = 113,704.20 : x
  2. Step 2: Convert to fraction form
    209,195.64/288,691.02 = 113,704.20/x
  3. Step 3: Cross multiply
    209,195.64x = 288,691.02 × 113,704.20
  4. Step 4: Simplify right side
    209,195.64x = 32,825,381,476.28
  5. Step 5: Solve for x
    x = 32,825,381,476.28/209,195.64
  6. Step 6: Final answer
    x = 156,912.36

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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.