Home / 209,106.49-288,568.16-113,613.97

Finding the Fourth Proportional to 209,106.49, 288,568.16 and 113,613.97

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Solution

The fourth proportional to 209,106.49, 288,568.16 and 113,613.97 is: 156,787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,106.49 : 288,568.16 = 113,613.97 : x
  2. Step 2: Convert to fraction form
    209,106.49/288,568.16 = 113,613.97/x
  3. Step 3: Cross multiply
    209,106.49x = 288,568.16 × 113,613.97
  4. Step 4: Simplify right side
    209,106.49x = 32,785,374,273.20
  5. Step 5: Solve for x
    x = 32,785,374,273.20/209,106.49
  6. Step 6: Final answer
    x = 156,787.93

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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.