Home / 209,158.20-288,638.24-113,664.90

Finding the Fourth Proportional to 209,158.20, 288,638.24 and 113,664.90

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Solution

The fourth proportional to 209,158.20, 288,638.24 and 113,664.90 is: 156,857.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,158.20 : 288,638.24 = 113,664.90 : x
  2. Step 2: Convert to fraction form
    209,158.20/288,638.24 = 113,664.90/x
  3. Step 3: Cross multiply
    209,158.20x = 288,638.24 × 113,664.90
  4. Step 4: Simplify right side
    209,158.20x = 32,808,036,117.45
  5. Step 5: Solve for x
    x = 32,808,036,117.45/209,158.20
  6. Step 6: Final answer
    x = 156,857.52

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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.