Home / 142,722-196,769.66-122,792.97

Finding the Fourth Proportional to 142,722, 196,769.66 and 122,792.97

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Solution

The fourth proportional to 142,722, 196,769.66 and 122,792.97 is: 169,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,722 : 196,769.66 = 122,792.97 : x
  2. Step 2: Convert to fraction form
    142,722/196,769.66 = 122,792.97/x
  3. Step 3: Cross multiply
    142,722x = 196,769.66 × 122,792.97
  4. Step 4: Simplify right side
    142,722x = 24,161,930,957.29
  5. Step 5: Solve for x
    x = 24,161,930,957.29/142,722
  6. Step 6: Final answer
    x = 169,293.67

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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.