Home / 106,213.56-159,347.07-87,269.90

Finding the Fourth Proportional to 106,213.56, 159,347.07 and 87,269.90

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Solution

The fourth proportional to 106,213.56, 159,347.07 and 87,269.90 is: 130,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,213.56 : 159,347.07 = 87,269.90 : x
  2. Step 2: Convert to fraction form
    106,213.56/159,347.07 = 87,269.90/x
  3. Step 3: Cross multiply
    106,213.56x = 159,347.07 × 87,269.90
  4. Step 4: Simplify right side
    106,213.56x = 13,906,202,067.46
  5. Step 5: Solve for x
    x = 13,906,202,067.46/106,213.56
  6. Step 6: Final answer
    x = 130,926.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.