Home / 142,724.76-196,960.32-79,061.22

Finding the Fourth Proportional to 142,724.76, 196,960.32 and 79,061.22

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Solution

The fourth proportional to 142,724.76, 196,960.32 and 79,061.22 is: 109,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724.76 : 196,960.32 = 79,061.22 : x
  2. Step 2: Convert to fraction form
    142,724.76/196,960.32 = 79,061.22/x
  3. Step 3: Cross multiply
    142,724.76x = 196,960.32 × 79,061.22
  4. Step 4: Simplify right side
    142,724.76x = 15,571,923,190.79
  5. Step 5: Solve for x
    x = 15,571,923,190.79/142,724.76
  6. Step 6: Final answer
    x = 109,104.57

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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.