Home / 129,755.90-194,564.47-66,550.23

Finding the Fourth Proportional to 129,755.90, 194,564.47 and 66,550.23

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Solution

The fourth proportional to 129,755.90, 194,564.47 and 66,550.23 is: 99,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,755.90 : 194,564.47 = 66,550.23 : x
  2. Step 2: Convert to fraction form
    129,755.90/194,564.47 = 66,550.23/x
  3. Step 3: Cross multiply
    129,755.90x = 194,564.47 × 66,550.23
  4. Step 4: Simplify right side
    129,755.90x = 12,948,309,255.51
  5. Step 5: Solve for x
    x = 12,948,309,255.51/129,755.90
  6. Step 6: Final answer
    x = 99,789.76

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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.