Home / 146,721.98-220,083.05-80,125.70

Finding the Fourth Proportional to 146,721.98, 220,083.05 and 80,125.70

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Solution

The fourth proportional to 146,721.98, 220,083.05 and 80,125.70 is: 120,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,721.98 : 220,083.05 = 80,125.70 : x
  2. Step 2: Convert to fraction form
    146,721.98/220,083.05 = 80,125.70/x
  3. Step 3: Cross multiply
    146,721.98x = 220,083.05 × 80,125.70
  4. Step 4: Simplify right side
    146,721.98x = 17,634,306,938.34
  5. Step 5: Solve for x
    x = 17,634,306,938.34/146,721.98
  6. Step 6: Final answer
    x = 120,188.59

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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.