Home / 119,731.25-165,229.80-66,015.33

Finding the Fourth Proportional to 119,731.25, 165,229.80 and 66,015.33

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Solution

The fourth proportional to 119,731.25, 165,229.80 and 66,015.33 is: 91,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,731.25 : 165,229.80 = 66,015.33 : x
  2. Step 2: Convert to fraction form
    119,731.25/165,229.80 = 66,015.33/x
  3. Step 3: Cross multiply
    119,731.25x = 165,229.80 × 66,015.33
  4. Step 4: Simplify right side
    119,731.25x = 10,907,699,772.83
  5. Step 5: Solve for x
    x = 10,907,699,772.83/119,731.25
  6. Step 6: Final answer
    x = 91,101.53

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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.