Home / 106,143.26-159,189.35-31,243.05

Finding the Fourth Proportional to 106,143.26, 159,189.35 and 31,243.05

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Solution

The fourth proportional to 106,143.26, 159,189.35 and 31,243.05 is: 46,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,143.26 : 159,189.35 = 31,243.05 : x
  2. Step 2: Convert to fraction form
    106,143.26/159,189.35 = 31,243.05/x
  3. Step 3: Cross multiply
    106,143.26x = 159,189.35 × 31,243.05
  4. Step 4: Simplify right side
    106,143.26x = 4,973,560,665.30
  5. Step 5: Solve for x
    x = 4,973,560,665.30/106,143.26
  6. Step 6: Final answer
    x = 46,857.06

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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.