Home / 139,455.56-192,450.16-75,793.36

Finding the Fourth Proportional to 139,455.56, 192,450.16 and 75,793.36

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Solution

The fourth proportional to 139,455.56, 192,450.16 and 75,793.36 is: 104,595.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,455.56 : 192,450.16 = 75,793.36 : x
  2. Step 2: Convert to fraction form
    139,455.56/192,450.16 = 75,793.36/x
  3. Step 3: Cross multiply
    139,455.56x = 192,450.16 × 75,793.36
  4. Step 4: Simplify right side
    139,455.56x = 14,586,444,258.94
  5. Step 5: Solve for x
    x = 14,586,444,258.94/139,455.56
  6. Step 6: Final answer
    x = 104,595.65

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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.