Home / 142,750.20-196,996.68-79,088.88

Finding the Fourth Proportional to 142,750.20, 196,996.68 and 79,088.88

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Solution

The fourth proportional to 142,750.20, 196,996.68 and 79,088.88 is: 109,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,750.20 : 196,996.68 = 79,088.88 : x
  2. Step 2: Convert to fraction form
    142,750.20/196,996.68 = 79,088.88/x
  3. Step 3: Cross multiply
    142,750.20x = 196,996.68 × 79,088.88
  4. Step 4: Simplify right side
    142,750.20x = 15,580,246,784.92
  5. Step 5: Solve for x
    x = 15,580,246,784.92/142,750.20
  6. Step 6: Final answer
    x = 109,143.43

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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.