Home / 106,257.88-159,361.29-31,357.78

Finding the Fourth Proportional to 106,257.88, 159,361.29 and 31,357.78

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Solution

The fourth proportional to 106,257.88, 159,361.29 and 31,357.78 is: 47,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,257.88 : 159,361.29 = 31,357.78 : x
  2. Step 2: Convert to fraction form
    106,257.88/159,361.29 = 31,357.78/x
  3. Step 3: Cross multiply
    106,257.88x = 159,361.29 × 31,357.78
  4. Step 4: Simplify right side
    106,257.88x = 4,997,216,272.34
  5. Step 5: Solve for x
    x = 4,997,216,272.34/106,257.88
  6. Step 6: Final answer
    x = 47,029.14

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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.