Home / 209,065.20-288,506.16-113,570.88

Finding the Fourth Proportional to 209,065.20, 288,506.16 and 113,570.88

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Solution

The fourth proportional to 209,065.20, 288,506.16 and 113,570.88 is: 156,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,065.20 : 288,506.16 = 113,570.88 : x
  2. Step 2: Convert to fraction form
    209,065.20/288,506.16 = 113,570.88/x
  3. Step 3: Cross multiply
    209,065.20x = 288,506.16 × 113,570.88
  4. Step 4: Simplify right side
    209,065.20x = 32,765,898,476.62
  5. Step 5: Solve for x
    x = 32,765,898,476.62/209,065.20
  6. Step 6: Final answer
    x = 156,725.74

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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.