Home / 192,765.81-288,819.69-136,512.46

Finding the Fourth Proportional to 192,765.81, 288,819.69 and 136,512.46

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Solution

The fourth proportional to 192,765.81, 288,819.69 and 136,512.46 is: 204,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,765.81 : 288,819.69 = 136,512.46 : x
  2. Step 2: Convert to fraction form
    192,765.81/288,819.69 = 136,512.46/x
  3. Step 3: Cross multiply
    192,765.81x = 288,819.69 × 136,512.46
  4. Step 4: Simplify right side
    192,765.81x = 39,427,486,378.34
  5. Step 5: Solve for x
    x = 39,427,486,378.34/192,765.81
  6. Step 6: Final answer
    x = 204,535.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.