Home / 209,126.38-288,593.85-113,633.08

Finding the Fourth Proportional to 209,126.38, 288,593.85 and 113,633.08

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Solution

The fourth proportional to 209,126.38, 288,593.85 and 113,633.08 is: 156,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,126.38 : 288,593.85 = 113,633.08 : x
  2. Step 2: Convert to fraction form
    209,126.38/288,593.85 = 113,633.08/x
  3. Step 3: Cross multiply
    209,126.38x = 288,593.85 × 113,633.08
  4. Step 4: Simplify right side
    209,126.38x = 32,793,806,790.42
  5. Step 5: Solve for x
    x = 32,793,806,790.42/209,126.38
  6. Step 6: Final answer
    x = 156,813.34

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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.