Home / 209,276.17-288,812.92-113,780.81

Finding the Fourth Proportional to 209,276.17, 288,812.92 and 113,780.81

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Solution

The fourth proportional to 209,276.17, 288,812.92 and 113,780.81 is: 157,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,276.17 : 288,812.92 = 113,780.81 : x
  2. Step 2: Convert to fraction form
    209,276.17/288,812.92 = 113,780.81/x
  3. Step 3: Cross multiply
    209,276.17x = 288,812.92 × 113,780.81
  4. Step 4: Simplify right side
    209,276.17x = 32,861,367,976.07
  5. Step 5: Solve for x
    x = 32,861,367,976.07/209,276.17
  6. Step 6: Final answer
    x = 157,023.94

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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.