Home / 209,109.79-288,565.09-113,614.44

Finding the Fourth Proportional to 209,109.79, 288,565.09 and 113,614.44

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Solution

The fourth proportional to 209,109.79, 288,565.09 and 113,614.44 is: 156,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,109.79 : 288,565.09 = 113,614.44 : x
  2. Step 2: Convert to fraction form
    209,109.79/288,565.09 = 113,614.44/x
  3. Step 3: Cross multiply
    209,109.79x = 288,565.09 × 113,614.44
  4. Step 4: Simplify right side
    209,109.79x = 32,785,161,103.90
  5. Step 5: Solve for x
    x = 32,785,161,103.90/209,109.79
  6. Step 6: Final answer
    x = 156,784.44

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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.