Home / 139,635.91-192,693.76-75,972.34

Finding the Fourth Proportional to 139,635.91, 192,693.76 and 75,972.34

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Solution

The fourth proportional to 139,635.91, 192,693.76 and 75,972.34 is: 104,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,635.91 : 192,693.76 = 75,972.34 : x
  2. Step 2: Convert to fraction form
    139,635.91/192,693.76 = 75,972.34/x
  3. Step 3: Cross multiply
    139,635.91x = 192,693.76 × 75,972.34
  4. Step 4: Simplify right side
    139,635.91x = 14,639,395,850.60
  5. Step 5: Solve for x
    x = 14,639,395,850.60/139,635.91
  6. Step 6: Final answer
    x = 104,839.76

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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.