Home / 99,948.82-138,042.75-68,062.36

Finding the Fourth Proportional to 99,948.82, 138,042.75 and 68,062.36

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Solution

The fourth proportional to 99,948.82, 138,042.75 and 68,062.36 is: 94,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,948.82 : 138,042.75 = 68,062.36 : x
  2. Step 2: Convert to fraction form
    99,948.82/138,042.75 = 68,062.36/x
  3. Step 3: Cross multiply
    99,948.82x = 138,042.75 × 68,062.36
  4. Step 4: Simplify right side
    99,948.82x = 9,395,515,345.89
  5. Step 5: Solve for x
    x = 9,395,515,345.89/99,948.82
  6. Step 6: Final answer
    x = 94,003.26

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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.