Home / 106,067.90-159,393.47-99,132.68

Finding the Fourth Proportional to 106,067.90, 159,393.47 and 99,132.68

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Solution

The fourth proportional to 106,067.90, 159,393.47 and 99,132.68 is: 148,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,067.90 : 159,393.47 = 99,132.68 : x
  2. Step 2: Convert to fraction form
    106,067.90/159,393.47 = 99,132.68/x
  3. Step 3: Cross multiply
    106,067.90x = 159,393.47 × 99,132.68
  4. Step 4: Simplify right side
    106,067.90x = 15,801,101,758.42
  5. Step 5: Solve for x
    x = 15,801,101,758.42/106,067.90
  6. Step 6: Final answer
    x = 148,971.57

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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.