Home / 78,194.57-117,197.82-36,016.65

Finding the Fourth Proportional to 78,194.57, 117,197.82 and 36,016.65

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Solution

The fourth proportional to 78,194.57, 117,197.82 and 36,016.65 is: 53,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,194.57 : 117,197.82 = 36,016.65 : x
  2. Step 2: Convert to fraction form
    78,194.57/117,197.82 = 36,016.65/x
  3. Step 3: Cross multiply
    78,194.57x = 117,197.82 × 36,016.65
  4. Step 4: Simplify right side
    78,194.57x = 4,221,072,863.70
  5. Step 5: Solve for x
    x = 4,221,072,863.70/78,194.57
  6. Step 6: Final answer
    x = 53,981.67

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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.