Home / 106,282.16-146,647.84-80,781.72

Finding the Fourth Proportional to 106,282.16, 146,647.84 and 80,781.72

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Solution

The fourth proportional to 106,282.16, 146,647.84 and 80,781.72 is: 111,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,282.16 : 146,647.84 = 80,781.72 : x
  2. Step 2: Convert to fraction form
    106,282.16/146,647.84 = 80,781.72/x
  3. Step 3: Cross multiply
    106,282.16x = 146,647.84 × 80,781.72
  4. Step 4: Simplify right side
    106,282.16x = 11,846,464,749.48
  5. Step 5: Solve for x
    x = 11,846,464,749.48/106,282.16
  6. Step 6: Final answer
    x = 111,462.40

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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.