Home / 119,815.49-165,344.42-66,102.77

Finding the Fourth Proportional to 119,815.49, 165,344.42 and 66,102.77

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Solution

The fourth proportional to 119,815.49, 165,344.42 and 66,102.77 is: 91,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,815.49 : 165,344.42 = 66,102.77 : x
  2. Step 2: Convert to fraction form
    119,815.49/165,344.42 = 66,102.77/x
  3. Step 3: Cross multiply
    119,815.49x = 165,344.42 × 66,102.77
  4. Step 4: Simplify right side
    119,815.49x = 10,929,724,744.66
  5. Step 5: Solve for x
    x = 10,929,724,744.66/119,815.49
  6. Step 6: Final answer
    x = 91,221.30

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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.