Home / 106,531.82-159,644.31-73,289.42

Finding the Fourth Proportional to 106,531.82, 159,644.31 and 73,289.42

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Solution

The fourth proportional to 106,531.82, 159,644.31 and 73,289.42 is: 109,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,531.82 : 159,644.31 = 73,289.42 : x
  2. Step 2: Convert to fraction form
    106,531.82/159,644.31 = 73,289.42/x
  3. Step 3: Cross multiply
    106,531.82x = 159,644.31 × 73,289.42
  4. Step 4: Simplify right side
    106,531.82x = 11,700,238,886.20
  5. Step 5: Solve for x
    x = 11,700,238,886.20/106,531.82
  6. Step 6: Final answer
    x = 109,828.58

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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.