Home / 129,839.60-194,759.40-115,324.40

Finding the Fourth Proportional to 129,839.60, 194,759.40 and 115,324.40

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Solution

The fourth proportional to 129,839.60, 194,759.40 and 115,324.40 is: 172,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.60 : 194,759.40 = 115,324.40 : x
  2. Step 2: Convert to fraction form
    129,839.60/194,759.40 = 115,324.40/x
  3. Step 3: Cross multiply
    129,839.60x = 194,759.40 × 115,324.40
  4. Step 4: Simplify right side
    129,839.60x = 22,460,510,949.36
  5. Step 5: Solve for x
    x = 22,460,510,949.36/129,839.60
  6. Step 6: Final answer
    x = 172,986.60

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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.