Home / 221,072.22-305,070.69-135,175.89

Finding the Fourth Proportional to 221,072.22, 305,070.69 and 135,175.89

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Solution

The fourth proportional to 221,072.22, 305,070.69 and 135,175.89 is: 186,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,072.22 : 305,070.69 = 135,175.89 : x
  2. Step 2: Convert to fraction form
    221,072.22/305,070.69 = 135,175.89/x
  3. Step 3: Cross multiply
    221,072.22x = 305,070.69 × 135,175.89
  4. Step 4: Simplify right side
    221,072.22x = 41,238,202,033.66
  5. Step 5: Solve for x
    x = 41,238,202,033.66/221,072.22
  6. Step 6: Final answer
    x = 186,537.24

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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.