Home / 223,836.70-335,755.05-90,721.30

Finding the Fourth Proportional to 223,836.70, 335,755.05 and 90,721.30

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Solution

The fourth proportional to 223,836.70, 335,755.05 and 90,721.30 is: 136,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,836.70 : 335,755.05 = 90,721.30 : x
  2. Step 2: Convert to fraction form
    223,836.70/335,755.05 = 90,721.30/x
  3. Step 3: Cross multiply
    223,836.70x = 335,755.05 × 90,721.30
  4. Step 4: Simplify right side
    223,836.70x = 30,460,134,617.57
  5. Step 5: Solve for x
    x = 30,460,134,617.57/223,836.70
  6. Step 6: Final answer
    x = 136,081.95

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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.