Home / 129,625.60-194,438.40-98,132.80

Finding the Fourth Proportional to 129,625.60, 194,438.40 and 98,132.80

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Solution

The fourth proportional to 129,625.60, 194,438.40 and 98,132.80 is: 147,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,625.60 : 194,438.40 = 98,132.80 : x
  2. Step 2: Convert to fraction form
    129,625.60/194,438.40 = 98,132.80/x
  3. Step 3: Cross multiply
    129,625.60x = 194,438.40 × 98,132.80
  4. Step 4: Simplify right side
    129,625.60x = 19,080,784,619.52
  5. Step 5: Solve for x
    x = 19,080,784,619.52/129,625.60
  6. Step 6: Final answer
    x = 147,199.20

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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.