Home / 129,984.40-194,976.60-128,016.10

Finding the Fourth Proportional to 129,984.40, 194,976.60 and 128,016.10

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Solution

The fourth proportional to 129,984.40, 194,976.60 and 128,016.10 is: 192,024.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,984.40 : 194,976.60 = 128,016.10 : x
  2. Step 2: Convert to fraction form
    129,984.40/194,976.60 = 128,016.10/x
  3. Step 3: Cross multiply
    129,984.40x = 194,976.60 × 128,016.10
  4. Step 4: Simplify right side
    129,984.40x = 24,960,143,923.26
  5. Step 5: Solve for x
    x = 24,960,143,923.26/129,984.40
  6. Step 6: Final answer
    x = 192,024.15

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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.