Home / 106,169.08-159,289.80-66,679.96

Finding the Fourth Proportional to 106,169.08, 159,289.80 and 66,679.96

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Solution

The fourth proportional to 106,169.08, 159,289.80 and 66,679.96 is: 100,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,169.08 : 159,289.80 = 66,679.96 : x
  2. Step 2: Convert to fraction form
    106,169.08/159,289.80 = 66,679.96/x
  3. Step 3: Cross multiply
    106,169.08x = 159,289.80 × 66,679.96
  4. Step 4: Simplify right side
    106,169.08x = 10,621,437,492.41
  5. Step 5: Solve for x
    x = 10,621,437,492.41/106,169.08
  6. Step 6: Final answer
    x = 100,042.66

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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.