Home / 209,120.76-288,587.82-113,628.24

Finding the Fourth Proportional to 209,120.76, 288,587.82 and 113,628.24

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Solution

The fourth proportional to 209,120.76, 288,587.82 and 113,628.24 is: 156,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.76 : 288,587.82 = 113,628.24 : x
  2. Step 2: Convert to fraction form
    209,120.76/288,587.82 = 113,628.24/x
  3. Step 3: Cross multiply
    209,120.76x = 288,587.82 × 113,628.24
  4. Step 4: Simplify right side
    209,120.76x = 32,791,726,072.04
  5. Step 5: Solve for x
    x = 32,791,726,072.04/209,120.76
  6. Step 6: Final answer
    x = 156,807.61

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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.