Home / 142,589.52-196,760.14-85,217.36

Finding the Fourth Proportional to 142,589.52, 196,760.14 and 85,217.36

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Solution

The fourth proportional to 142,589.52, 196,760.14 and 85,217.36 is: 117,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,589.52 : 196,760.14 = 85,217.36 : x
  2. Step 2: Convert to fraction form
    142,589.52/196,760.14 = 85,217.36/x
  3. Step 3: Cross multiply
    142,589.52x = 196,760.14 × 85,217.36
  4. Step 4: Simplify right side
    142,589.52x = 16,767,378,487.19
  5. Step 5: Solve for x
    x = 16,767,378,487.19/142,589.52
  6. Step 6: Final answer
    x = 117,591.94

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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.