Home / 102,778.45-154,169.38-36,219.38

Finding the Fourth Proportional to 102,778.45, 154,169.38 and 36,219.38

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Solution

The fourth proportional to 102,778.45, 154,169.38 and 36,219.38 is: 54,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,778.45 : 154,169.38 = 36,219.38 : x
  2. Step 2: Convert to fraction form
    102,778.45/154,169.38 = 36,219.38/x
  3. Step 3: Cross multiply
    102,778.45x = 154,169.38 × 36,219.38
  4. Step 4: Simplify right side
    102,778.45x = 5,583,919,177.49
  5. Step 5: Solve for x
    x = 5,583,919,177.49/102,778.45
  6. Step 6: Final answer
    x = 54,329.67

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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.