Home / 178,778.27-268,163.88-72,159.39

Finding the Fourth Proportional to 178,778.27, 268,163.88 and 72,159.39

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Solution

The fourth proportional to 178,778.27, 268,163.88 and 72,159.39 is: 108,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,778.27 : 268,163.88 = 72,159.39 : x
  2. Step 2: Convert to fraction form
    178,778.27/268,163.88 = 72,159.39/x
  3. Step 3: Cross multiply
    178,778.27x = 268,163.88 × 72,159.39
  4. Step 4: Simplify right side
    178,778.27x = 19,350,542,000.83
  5. Step 5: Solve for x
    x = 19,350,542,000.83/178,778.27
  6. Step 6: Final answer
    x = 108,237.67

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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.