Home / 129,057.88-178,122.69-96,515.55

Finding the Fourth Proportional to 129,057.88, 178,122.69 and 96,515.55

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Solution

The fourth proportional to 129,057.88, 178,122.69 and 96,515.55 is: 133,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,057.88 : 178,122.69 = 96,515.55 : x
  2. Step 2: Convert to fraction form
    129,057.88/178,122.69 = 96,515.55/x
  3. Step 3: Cross multiply
    129,057.88x = 178,122.69 × 96,515.55
  4. Step 4: Simplify right side
    129,057.88x = 17,191,609,121.38
  5. Step 5: Solve for x
    x = 17,191,609,121.38/129,057.88
  6. Step 6: Final answer
    x = 133,208.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.