Home / 142,790.92-197,052.42-79,132.84

Finding the Fourth Proportional to 142,790.92, 197,052.42 and 79,132.84

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Solution

The fourth proportional to 142,790.92, 197,052.42 and 79,132.84 is: 109,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,790.92 : 197,052.42 = 79,132.84 : x
  2. Step 2: Convert to fraction form
    142,790.92/197,052.42 = 79,132.84/x
  3. Step 3: Cross multiply
    142,790.92x = 197,052.42 × 79,132.84
  4. Step 4: Simplify right side
    142,790.92x = 15,593,317,623.47
  5. Step 5: Solve for x
    x = 15,593,317,623.47/142,790.92
  6. Step 6: Final answer
    x = 109,203.85

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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.