Home / 209,120.54-288,579.92-113,625.20

Finding the Fourth Proportional to 209,120.54, 288,579.92 and 113,625.20

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Solution

The fourth proportional to 209,120.54, 288,579.92 and 113,625.20 is: 156,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.54 : 288,579.92 = 113,625.20 : x
  2. Step 2: Convert to fraction form
    209,120.54/288,579.92 = 113,625.20/x
  3. Step 3: Cross multiply
    209,120.54x = 288,579.92 × 113,625.20
  4. Step 4: Simplify right side
    209,120.54x = 32,789,951,125.98
  5. Step 5: Solve for x
    x = 32,789,951,125.98/209,120.54
  6. Step 6: Final answer
    x = 156,799.28

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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.