Home / 209,520.96-288,937.90-140,765.75

Finding the Fourth Proportional to 209,520.96, 288,937.90 and 140,765.75

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Solution

The fourth proportional to 209,520.96, 288,937.90 and 140,765.75 is: 194,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,520.96 : 288,937.90 = 140,765.75 : x
  2. Step 2: Convert to fraction form
    209,520.96/288,937.90 = 140,765.75/x
  3. Step 3: Cross multiply
    209,520.96x = 288,937.90 × 140,765.75
  4. Step 4: Simplify right side
    209,520.96x = 40,672,560,196.93
  5. Step 5: Solve for x
    x = 40,672,560,196.93/209,520.96
  6. Step 6: Final answer
    x = 194,121.68

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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.