Home / 142,589.20-196,793.84-82,148.08

Finding the Fourth Proportional to 142,589.20, 196,793.84 and 82,148.08

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Solution

The fourth proportional to 142,589.20, 196,793.84 and 82,148.08 is: 113,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,589.20 : 196,793.84 = 82,148.08 : x
  2. Step 2: Convert to fraction form
    142,589.20/196,793.84 = 82,148.08/x
  3. Step 3: Cross multiply
    142,589.20x = 196,793.84 × 82,148.08
  4. Step 4: Simplify right side
    142,589.20x = 16,166,236,111.83
  5. Step 5: Solve for x
    x = 16,166,236,111.83/142,589.20
  6. Step 6: Final answer
    x = 113,376.30

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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.