Home / 129,782.20-194,673.30-88,310.20

Finding the Fourth Proportional to 129,782.20, 194,673.30 and 88,310.20

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Solution

The fourth proportional to 129,782.20, 194,673.30 and 88,310.20 is: 132,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,782.20 : 194,673.30 = 88,310.20 : x
  2. Step 2: Convert to fraction form
    129,782.20/194,673.30 = 88,310.20/x
  3. Step 3: Cross multiply
    129,782.20x = 194,673.30 × 88,310.20
  4. Step 4: Simplify right side
    129,782.20x = 17,191,638,057.66
  5. Step 5: Solve for x
    x = 17,191,638,057.66/129,782.20
  6. Step 6: Final answer
    x = 132,465.30

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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.