Home / 117,104.82-161,603.75-63,390.48

Finding the Fourth Proportional to 117,104.82, 161,603.75 and 63,390.48

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Solution

The fourth proportional to 117,104.82, 161,603.75 and 63,390.48 is: 87,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.82 : 161,603.75 = 63,390.48 : x
  2. Step 2: Convert to fraction form
    117,104.82/161,603.75 = 63,390.48/x
  3. Step 3: Cross multiply
    117,104.82x = 161,603.75 × 63,390.48
  4. Step 4: Simplify right side
    117,104.82x = 10,244,138,965.35
  5. Step 5: Solve for x
    x = 10,244,138,965.35/117,104.82
  6. Step 6: Final answer
    x = 87,478.37

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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.