Home / 209,278.20-288,796.02-113,781.60

Finding the Fourth Proportional to 209,278.20, 288,796.02 and 113,781.60

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Solution

The fourth proportional to 209,278.20, 288,796.02 and 113,781.60 is: 157,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278.20 : 288,796.02 = 113,781.60 : x
  2. Step 2: Convert to fraction form
    209,278.20/288,796.02 = 113,781.60/x
  3. Step 3: Cross multiply
    209,278.20x = 288,796.02 × 113,781.60
  4. Step 4: Simplify right side
    209,278.20x = 32,859,673,229.23
  5. Step 5: Solve for x
    x = 32,859,673,229.23/209,278.20
  6. Step 6: Final answer
    x = 157,014.32

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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.