Home / 106,151.31-146,318.81-80,574.35

Finding the Fourth Proportional to 106,151.31, 146,318.81 and 80,574.35

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Solution

The fourth proportional to 106,151.31, 146,318.81 and 80,574.35 is: 111,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,151.31 : 146,318.81 = 80,574.35 : x
  2. Step 2: Convert to fraction form
    106,151.31/146,318.81 = 80,574.35/x
  3. Step 3: Cross multiply
    106,151.31x = 146,318.81 × 80,574.35
  4. Step 4: Simplify right side
    106,151.31x = 11,789,541,874.06
  5. Step 5: Solve for x
    x = 11,789,541,874.06/106,151.31
  6. Step 6: Final answer
    x = 111,063.56

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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.