Home / 119,910.90-165,474.75-66,197.58

Finding the Fourth Proportional to 119,910.90, 165,474.75 and 66,197.58

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Solution

The fourth proportional to 119,910.90, 165,474.75 and 66,197.58 is: 91,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,910.90 : 165,474.75 = 66,197.58 : x
  2. Step 2: Convert to fraction form
    119,910.90/165,474.75 = 66,197.58/x
  3. Step 3: Cross multiply
    119,910.90x = 165,474.75 × 66,197.58
  4. Step 4: Simplify right side
    119,910.90x = 10,954,028,001.11
  5. Step 5: Solve for x
    x = 10,954,028,001.11/119,910.90
  6. Step 6: Final answer
    x = 91,351.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.