Home / 106,286.47-159,432.09-39,690.27

Finding the Fourth Proportional to 106,286.47, 159,432.09 and 39,690.27

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Solution

The fourth proportional to 106,286.47, 159,432.09 and 39,690.27 is: 59,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,286.47 : 159,432.09 = 39,690.27 : x
  2. Step 2: Convert to fraction form
    106,286.47/159,432.09 = 39,690.27/x
  3. Step 3: Cross multiply
    106,286.47x = 159,432.09 × 39,690.27
  4. Step 4: Simplify right side
    106,286.47x = 6,327,902,698.76
  5. Step 5: Solve for x
    x = 6,327,902,698.76/106,286.47
  6. Step 6: Final answer
    x = 59,536.30

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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.