Home / 144,001.89-198,721.22-79,471.73

Finding the Fourth Proportional to 144,001.89, 198,721.22 and 79,471.73

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Solution

The fourth proportional to 144,001.89, 198,721.22 and 79,471.73 is: 109,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,001.89 : 198,721.22 = 79,471.73 : x
  2. Step 2: Convert to fraction form
    144,001.89/198,721.22 = 79,471.73/x
  3. Step 3: Cross multiply
    144,001.89x = 198,721.22 × 79,471.73
  4. Step 4: Simplify right side
    144,001.89x = 15,792,717,750.15
  5. Step 5: Solve for x
    x = 15,792,717,750.15/144,001.89
  6. Step 6: Final answer
    x = 109,670.21

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1.5x scale

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.