Home / 101,939.66-140,687.89-58,336.25

Finding the Fourth Proportional to 101,939.66, 140,687.89 and 58,336.25

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Solution

The fourth proportional to 101,939.66, 140,687.89 and 58,336.25 is: 80,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,939.66 : 140,687.89 = 58,336.25 : x
  2. Step 2: Convert to fraction form
    101,939.66/140,687.89 = 58,336.25/x
  3. Step 3: Cross multiply
    101,939.66x = 140,687.89 × 58,336.25
  4. Step 4: Simplify right side
    101,939.66x = 8,207,203,865.10
  5. Step 5: Solve for x
    x = 8,207,203,865.10/101,939.66
  6. Step 6: Final answer
    x = 80,510.41

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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.