Home / 109,132.54-150,623.57-68,315.67

Finding the Fourth Proportional to 109,132.54, 150,623.57 and 68,315.67

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Solution

The fourth proportional to 109,132.54, 150,623.57 and 68,315.67 is: 94,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132.54 : 150,623.57 = 68,315.67 : x
  2. Step 2: Convert to fraction form
    109,132.54/150,623.57 = 68,315.67/x
  3. Step 3: Cross multiply
    109,132.54x = 150,623.57 × 68,315.67
  4. Step 4: Simplify right side
    109,132.54x = 10,289,950,273.13
  5. Step 5: Solve for x
    x = 10,289,950,273.13/109,132.54
  6. Step 6: Final answer
    x = 94,288.56

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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.