Home / 177,972.28-266,958.42-81,899.80

Finding the Fourth Proportional to 177,972.28, 266,958.42 and 81,899.80

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Solution

The fourth proportional to 177,972.28, 266,958.42 and 81,899.80 is: 122,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,972.28 : 266,958.42 = 81,899.80 : x
  2. Step 2: Convert to fraction form
    177,972.28/266,958.42 = 81,899.80/x
  3. Step 3: Cross multiply
    177,972.28x = 266,958.42 × 81,899.80
  4. Step 4: Simplify right side
    177,972.28x = 21,863,841,206.32
  5. Step 5: Solve for x
    x = 21,863,841,206.32/177,972.28
  6. Step 6: Final answer
    x = 122,849.70

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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.