Home / 102,020.24-140,443.26-84,086.84

Finding the Fourth Proportional to 102,020.24, 140,443.26 and 84,086.84

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Solution

The fourth proportional to 102,020.24, 140,443.26 and 84,086.84 is: 115,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.24 : 140,443.26 = 84,086.84 : x
  2. Step 2: Convert to fraction form
    102,020.24/140,443.26 = 84,086.84/x
  3. Step 3: Cross multiply
    102,020.24x = 140,443.26 × 84,086.84
  4. Step 4: Simplify right side
    102,020.24x = 11,809,429,932.70
  5. Step 5: Solve for x
    x = 11,809,429,932.70/102,020.24
  6. Step 6: Final answer
    x = 115,755.76

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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.