Home / 84,186.72-126,192.24-34,246.80

Finding the Fourth Proportional to 84,186.72, 126,192.24 and 34,246.80

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Solution

The fourth proportional to 84,186.72, 126,192.24 and 34,246.80 is: 51,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,186.72 : 126,192.24 = 34,246.80 : x
  2. Step 2: Convert to fraction form
    84,186.72/126,192.24 = 34,246.80/x
  3. Step 3: Cross multiply
    84,186.72x = 126,192.24 × 34,246.80
  4. Step 4: Simplify right side
    84,186.72x = 4,321,680,404.83
  5. Step 5: Solve for x
    x = 4,321,680,404.83/84,186.72
  6. Step 6: Final answer
    x = 51,334.47

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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.