Home / 119,778.84-165,295.94-66,065.72

Finding the Fourth Proportional to 119,778.84, 165,295.94 and 66,065.72

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Solution

The fourth proportional to 119,778.84, 165,295.94 and 66,065.72 is: 91,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.84 : 165,295.94 = 66,065.72 : x
  2. Step 2: Convert to fraction form
    119,778.84/165,295.94 = 66,065.72/x
  3. Step 3: Cross multiply
    119,778.84x = 165,295.94 × 66,065.72
  4. Step 4: Simplify right side
    119,778.84x = 10,920,394,132.37
  5. Step 5: Solve for x
    x = 10,920,394,132.37/119,778.84
  6. Step 6: Final answer
    x = 91,171.31

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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.