Home / 146,190.70-219,026.85-90,721.90

Finding the Fourth Proportional to 146,190.70, 219,026.85 and 90,721.90

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Solution

The fourth proportional to 146,190.70, 219,026.85 and 90,721.90 is: 135,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,190.70 : 219,026.85 = 90,721.90 : x
  2. Step 2: Convert to fraction form
    146,190.70/219,026.85 = 90,721.90/x
  3. Step 3: Cross multiply
    146,190.70x = 219,026.85 × 90,721.90
  4. Step 4: Simplify right side
    146,190.70x = 19,870,531,983.02
  5. Step 5: Solve for x
    x = 19,870,531,983.02/146,190.70
  6. Step 6: Final answer
    x = 135,922.00

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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.