Home / 142,539.60-196,691.28-85,167.50

Finding the Fourth Proportional to 142,539.60, 196,691.28 and 85,167.50

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Solution

The fourth proportional to 142,539.60, 196,691.28 and 85,167.50 is: 117,523.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539.60 : 196,691.28 = 85,167.50 : x
  2. Step 2: Convert to fraction form
    142,539.60/196,691.28 = 85,167.50/x
  3. Step 3: Cross multiply
    142,539.60x = 196,691.28 × 85,167.50
  4. Step 4: Simplify right side
    142,539.60x = 16,751,704,589.40
  5. Step 5: Solve for x
    x = 16,751,704,589.40/142,539.60
  6. Step 6: Final answer
    x = 117,523.16

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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.