Home / 106,659.42-159,987.03-31,830.27

Finding the Fourth Proportional to 106,659.42, 159,987.03 and 31,830.27

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Solution

The fourth proportional to 106,659.42, 159,987.03 and 31,830.27 is: 47,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,659.42 : 159,987.03 = 31,830.27 : x
  2. Step 2: Convert to fraction form
    106,659.42/159,987.03 = 31,830.27/x
  3. Step 3: Cross multiply
    106,659.42x = 159,987.03 × 31,830.27
  4. Step 4: Simplify right side
    106,659.42x = 5,092,430,361.40
  5. Step 5: Solve for x
    x = 5,092,430,361.40/106,659.42
  6. Step 6: Final answer
    x = 47,744.78

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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.