Home / 126,516.06-174,523.07-81,143.56

Finding the Fourth Proportional to 126,516.06, 174,523.07 and 81,143.56

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Solution

The fourth proportional to 126,516.06, 174,523.07 and 81,143.56 is: 111,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,516.06 : 174,523.07 = 81,143.56 : x
  2. Step 2: Convert to fraction form
    126,516.06/174,523.07 = 81,143.56/x
  3. Step 3: Cross multiply
    126,516.06x = 174,523.07 × 81,143.56
  4. Step 4: Simplify right side
    126,516.06x = 14,161,423,201.93
  5. Step 5: Solve for x
    x = 14,161,423,201.93/126,516.06
  6. Step 6: Final answer
    x = 111,933.80

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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.