Home / 177,712.40-266,131.20-84,108.80

Finding the Fourth Proportional to 177,712.40, 266,131.20 and 84,108.80

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Solution

The fourth proportional to 177,712.40, 266,131.20 and 84,108.80 is: 125,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,712.40 : 266,131.20 = 84,108.80 : x
  2. Step 2: Convert to fraction form
    177,712.40/266,131.20 = 84,108.80/x
  3. Step 3: Cross multiply
    177,712.40x = 266,131.20 × 84,108.80
  4. Step 4: Simplify right side
    177,712.40x = 22,383,975,874.56
  5. Step 5: Solve for x
    x = 22,383,975,874.56/177,712.40
  6. Step 6: Final answer
    x = 125,956.18

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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.