Home / 209,410.43-288,986.17-113,916.90

Finding the Fourth Proportional to 209,410.43, 288,986.17 and 113,916.90

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Solution

The fourth proportional to 209,410.43, 288,986.17 and 113,916.90 is: 157,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,410.43 : 288,986.17 = 113,916.90 : x
  2. Step 2: Convert to fraction form
    209,410.43/288,986.17 = 113,916.90/x
  3. Step 3: Cross multiply
    209,410.43x = 288,986.17 × 113,916.90
  4. Step 4: Simplify right side
    209,410.43x = 32,920,408,629.27
  5. Step 5: Solve for x
    x = 32,920,408,629.27/209,410.43
  6. Step 6: Final answer
    x = 157,205.20

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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.