Home / 142,572.20-196,798.82-82,166.96

Finding the Fourth Proportional to 142,572.20, 196,798.82 and 82,166.96

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Solution

The fourth proportional to 142,572.20, 196,798.82 and 82,166.96 is: 113,418.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,572.20 : 196,798.82 = 82,166.96 : x
  2. Step 2: Convert to fraction form
    142,572.20/196,798.82 = 82,166.96/x
  3. Step 3: Cross multiply
    142,572.20x = 196,798.82 × 82,166.96
  4. Step 4: Simplify right side
    142,572.20x = 16,170,359,745.16
  5. Step 5: Solve for x
    x = 16,170,359,745.16/142,572.20
  6. Step 6: Final answer
    x = 113,418.74

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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.