Home / 209,106.60-288,568.90-113,613.48

Finding the Fourth Proportional to 209,106.60, 288,568.90 and 113,613.48

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Solution

The fourth proportional to 209,106.60, 288,568.90 and 113,613.48 is: 156,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,106.60 : 288,568.90 = 113,613.48 : x
  2. Step 2: Convert to fraction form
    209,106.60/288,568.90 = 113,613.48/x
  3. Step 3: Cross multiply
    209,106.60x = 288,568.90 × 113,613.48
  4. Step 4: Simplify right side
    209,106.60x = 32,785,316,948.77
  5. Step 5: Solve for x
    x = 32,785,316,948.77/209,106.60
  6. Step 6: Final answer
    x = 156,787.58

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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.