Home / 119,721.39-165,212.36-66,005.03

Finding the Fourth Proportional to 119,721.39, 165,212.36 and 66,005.03

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Solution

The fourth proportional to 119,721.39, 165,212.36 and 66,005.03 is: 91,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,721.39 : 165,212.36 = 66,005.03 : x
  2. Step 2: Convert to fraction form
    119,721.39/165,212.36 = 66,005.03/x
  3. Step 3: Cross multiply
    119,721.39x = 165,212.36 × 66,005.03
  4. Step 4: Simplify right side
    119,721.39x = 10,904,846,179.38
  5. Step 5: Solve for x
    x = 10,904,846,179.38/119,721.39
  6. Step 6: Final answer
    x = 91,085.19

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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.