Home / 142,539.85-196,691.63-85,167.75

Finding the Fourth Proportional to 142,539.85, 196,691.63 and 85,167.75

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Solution

The fourth proportional to 142,539.85, 196,691.63 and 85,167.75 is: 117,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539.85 : 196,691.63 = 85,167.75 : x
  2. Step 2: Convert to fraction form
    142,539.85/196,691.63 = 85,167.75/x
  3. Step 3: Cross multiply
    142,539.85x = 196,691.63 × 85,167.75
  4. Step 4: Simplify right side
    142,539.85x = 16,751,783,570.93
  5. Step 5: Solve for x
    x = 16,751,783,570.93/142,539.85
  6. Step 6: Final answer
    x = 117,523.51

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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.