Home / 106,288.14-146,656.14-80,787.72

Finding the Fourth Proportional to 106,288.14, 146,656.14 and 80,787.72

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Solution

The fourth proportional to 106,288.14, 146,656.14 and 80,787.72 is: 111,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,288.14 : 146,656.14 = 80,787.72 : x
  2. Step 2: Convert to fraction form
    106,288.14/146,656.14 = 80,787.72/x
  3. Step 3: Cross multiply
    106,288.14x = 146,656.14 × 80,787.72
  4. Step 4: Simplify right side
    106,288.14x = 11,848,015,174.60
  5. Step 5: Solve for x
    x = 11,848,015,174.60/106,288.14
  6. Step 6: Final answer
    x = 111,470.72

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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.