Home / 119,786.75-165,302.82-66,070.61

Finding the Fourth Proportional to 119,786.75, 165,302.82 and 66,070.61

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Solution

The fourth proportional to 119,786.75, 165,302.82 and 66,070.61 is: 91,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,786.75 : 165,302.82 = 66,070.61 : x
  2. Step 2: Convert to fraction form
    119,786.75/165,302.82 = 66,070.61/x
  3. Step 3: Cross multiply
    119,786.75x = 165,302.82 × 66,070.61
  4. Step 4: Simplify right side
    119,786.75x = 10,921,658,224.58
  5. Step 5: Solve for x
    x = 10,921,658,224.58/119,786.75
  6. Step 6: Final answer
    x = 91,175.85

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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.