Home / 104,982.11-144,877.57-57,235.78

Finding the Fourth Proportional to 104,982.11, 144,877.57 and 57,235.78

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Solution

The fourth proportional to 104,982.11, 144,877.57 and 57,235.78 is: 78,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,982.11 : 144,877.57 = 57,235.78 : x
  2. Step 2: Convert to fraction form
    104,982.11/144,877.57 = 57,235.78/x
  3. Step 3: Cross multiply
    104,982.11x = 144,877.57 × 57,235.78
  4. Step 4: Simplify right side
    104,982.11x = 8,292,180,723.45
  5. Step 5: Solve for x
    x = 8,292,180,723.45/104,982.11
  6. Step 6: Final answer
    x = 78,986.61

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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.