Home / 106,638.96-159,898.92-67,111.36

Finding the Fourth Proportional to 106,638.96, 159,898.92 and 67,111.36

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Solution

The fourth proportional to 106,638.96, 159,898.92 and 67,111.36 is: 100,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,638.96 : 159,898.92 = 67,111.36 : x
  2. Step 2: Convert to fraction form
    106,638.96/159,898.92 = 67,111.36/x
  3. Step 3: Cross multiply
    106,638.96x = 159,898.92 × 67,111.36
  4. Step 4: Simplify right side
    106,638.96x = 10,731,033,983.73
  5. Step 5: Solve for x
    x = 10,731,033,983.73/106,638.96
  6. Step 6: Final answer
    x = 100,629.58

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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.