Home / 209,120.50-288,587.64-113,627.17

Finding the Fourth Proportional to 209,120.50, 288,587.64 and 113,627.17

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Solution

The fourth proportional to 209,120.50, 288,587.64 and 113,627.17 is: 156,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.50 : 288,587.64 = 113,627.17 : x
  2. Step 2: Convert to fraction form
    209,120.50/288,587.64 = 113,627.17/x
  3. Step 3: Cross multiply
    209,120.50x = 288,587.64 × 113,627.17
  4. Step 4: Simplify right side
    209,120.50x = 32,791,396,830.18
  5. Step 5: Solve for x
    x = 32,791,396,830.18/209,120.50
  6. Step 6: Final answer
    x = 156,806.23

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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.