Home / 144,001.70-198,721.56-80,339.36

Finding the Fourth Proportional to 144,001.70, 198,721.56 and 80,339.36

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Solution

The fourth proportional to 144,001.70, 198,721.56 and 80,339.36 is: 110,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,001.70 : 198,721.56 = 80,339.36 : x
  2. Step 2: Convert to fraction form
    144,001.70/198,721.56 = 80,339.36/x
  3. Step 3: Cross multiply
    144,001.70x = 198,721.56 × 80,339.36
  4. Step 4: Simplify right side
    144,001.70x = 15,965,162,948.60
  5. Step 5: Solve for x
    x = 15,965,162,948.60/144,001.70
  6. Step 6: Final answer
    x = 110,867.88

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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.