Home / 106,449.19-146,902.01-68,789.05

Finding the Fourth Proportional to 106,449.19, 146,902.01 and 68,789.05

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Solution

The fourth proportional to 106,449.19, 146,902.01 and 68,789.05 is: 94,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,449.19 : 146,902.01 = 68,789.05 : x
  2. Step 2: Convert to fraction form
    106,449.19/146,902.01 = 68,789.05/x
  3. Step 3: Cross multiply
    106,449.19x = 146,902.01 × 68,789.05
  4. Step 4: Simplify right side
    106,449.19x = 10,105,248,999.79
  5. Step 5: Solve for x
    x = 10,105,248,999.79/106,449.19
  6. Step 6: Final answer
    x = 94,930.26

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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.