Home / 106,153.31-146,321.56-80,576.35

Finding the Fourth Proportional to 106,153.31, 146,321.56 and 80,576.35

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Solution

The fourth proportional to 106,153.31, 146,321.56 and 80,576.35 is: 111,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,153.31 : 146,321.56 = 80,576.35 : x
  2. Step 2: Convert to fraction form
    106,153.31/146,321.56 = 80,576.35/x
  3. Step 3: Cross multiply
    106,153.31x = 146,321.56 × 80,576.35
  4. Step 4: Simplify right side
    106,153.31x = 11,790,057,231.11
  5. Step 5: Solve for x
    x = 11,790,057,231.11/106,153.31
  6. Step 6: Final answer
    x = 111,066.32

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1.5x scale

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.