Home / 139,450.05-192,442.56-75,787.85

Finding the Fourth Proportional to 139,450.05, 192,442.56 and 75,787.85

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Solution

The fourth proportional to 139,450.05, 192,442.56 and 75,787.85 is: 104,588.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.05 : 192,442.56 = 75,787.85 : x
  2. Step 2: Convert to fraction form
    139,450.05/192,442.56 = 75,787.85/x
  3. Step 3: Cross multiply
    139,450.05x = 192,442.56 × 75,787.85
  4. Step 4: Simplify right side
    139,450.05x = 14,584,807,870.90
  5. Step 5: Solve for x
    x = 14,584,807,870.90/139,450.05
  6. Step 6: Final answer
    x = 104,588.04

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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.