Home / 127,943.56-176,593.78-87,175.12

Finding the Fourth Proportional to 127,943.56, 176,593.78 and 87,175.12

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Solution

The fourth proportional to 127,943.56, 176,593.78 and 87,175.12 is: 120,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,943.56 : 176,593.78 = 87,175.12 : x
  2. Step 2: Convert to fraction form
    127,943.56/176,593.78 = 87,175.12/x
  3. Step 3: Cross multiply
    127,943.56x = 176,593.78 × 87,175.12
  4. Step 4: Simplify right side
    127,943.56x = 15,394,583,962.75
  5. Step 5: Solve for x
    x = 15,394,583,962.75/127,943.56
  6. Step 6: Final answer
    x = 120,323.24

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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.