Home / 162,140.58-243,003.51-68,517.54

Finding the Fourth Proportional to 162,140.58, 243,003.51 and 68,517.54

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Solution

The fourth proportional to 162,140.58, 243,003.51 and 68,517.54 is: 102,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,140.58 : 243,003.51 = 68,517.54 : x
  2. Step 2: Convert to fraction form
    162,140.58/243,003.51 = 68,517.54/x
  3. Step 3: Cross multiply
    162,140.58x = 243,003.51 × 68,517.54
  4. Step 4: Simplify right side
    162,140.58x = 16,650,002,716.57
  5. Step 5: Solve for x
    x = 16,650,002,716.57/162,140.58
  6. Step 6: Final answer
    x = 102,688.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.