Home / 189,788.20-284,089.38-126,660.04

Finding the Fourth Proportional to 189,788.20, 284,089.38 and 126,660.04

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Solution

The fourth proportional to 189,788.20, 284,089.38 and 126,660.04 is: 189,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,788.20 : 284,089.38 = 126,660.04 : x
  2. Step 2: Convert to fraction form
    189,788.20/284,089.38 = 126,660.04/x
  3. Step 3: Cross multiply
    189,788.20x = 284,089.38 × 126,660.04
  4. Step 4: Simplify right side
    189,788.20x = 35,982,771,049.18
  5. Step 5: Solve for x
    x = 35,982,771,049.18/189,788.20
  6. Step 6: Final answer
    x = 189,594.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.