Home / 209,080.13-288,534.09-113,586.90

Finding the Fourth Proportional to 209,080.13, 288,534.09 and 113,586.90

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Solution

The fourth proportional to 209,080.13, 288,534.09 and 113,586.90 is: 156,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,080.13 : 288,534.09 = 113,586.90 : x
  2. Step 2: Convert to fraction form
    209,080.13/288,534.09 = 113,586.90/x
  3. Step 3: Cross multiply
    209,080.13x = 288,534.09 × 113,586.90
  4. Step 4: Simplify right side
    209,080.13x = 32,773,692,827.42
  5. Step 5: Solve for x
    x = 32,773,692,827.42/209,080.13
  6. Step 6: Final answer
    x = 156,751.83

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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.