Home / 129,756.90-194,565.97-66,551.23

Finding the Fourth Proportional to 129,756.90, 194,565.97 and 66,551.23

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Solution

The fourth proportional to 129,756.90, 194,565.97 and 66,551.23 is: 99,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,756.90 : 194,565.97 = 66,551.23 : x
  2. Step 2: Convert to fraction form
    129,756.90/194,565.97 = 66,551.23/x
  3. Step 3: Cross multiply
    129,756.90x = 194,565.97 × 66,551.23
  4. Step 4: Simplify right side
    129,756.90x = 12,948,604,619.64
  5. Step 5: Solve for x
    x = 12,948,604,619.64/129,756.90
  6. Step 6: Final answer
    x = 99,791.26

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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.