Home / 142,714.20-196,949.91-79,057.92

Finding the Fourth Proportional to 142,714.20, 196,949.91 and 79,057.92

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Solution

The fourth proportional to 142,714.20, 196,949.91 and 79,057.92 is: 109,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,714.20 : 196,949.91 = 79,057.92 : x
  2. Step 2: Convert to fraction form
    142,714.20/196,949.91 = 79,057.92/x
  3. Step 3: Cross multiply
    142,714.20x = 196,949.91 × 79,057.92
  4. Step 4: Simplify right side
    142,714.20x = 15,570,450,228.79
  5. Step 5: Solve for x
    x = 15,570,450,228.79/142,714.20
  6. Step 6: Final answer
    x = 109,102.32

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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.