Home / 209,057.28-288,499.35-113,563.95

Finding the Fourth Proportional to 209,057.28, 288,499.35 and 113,563.95

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Solution

The fourth proportional to 209,057.28, 288,499.35 and 113,563.95 is: 156,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,057.28 : 288,499.35 = 113,563.95 : x
  2. Step 2: Convert to fraction form
    209,057.28/288,499.35 = 113,563.95/x
  3. Step 3: Cross multiply
    209,057.28x = 288,499.35 × 113,563.95
  4. Step 4: Simplify right side
    209,057.28x = 32,763,125,758.43
  5. Step 5: Solve for x
    x = 32,763,125,758.43/209,057.28
  6. Step 6: Final answer
    x = 156,718.42

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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.