Home / 117,134.54-161,645.43-63,419.60

Finding the Fourth Proportional to 117,134.54, 161,645.43 and 63,419.60

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Solution

The fourth proportional to 117,134.54, 161,645.43 and 63,419.60 is: 87,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,134.54 : 161,645.43 = 63,419.60 : x
  2. Step 2: Convert to fraction form
    117,134.54/161,645.43 = 63,419.60/x
  3. Step 3: Cross multiply
    117,134.54x = 161,645.43 × 63,419.60
  4. Step 4: Simplify right side
    117,134.54x = 10,251,488,512.43
  5. Step 5: Solve for x
    x = 10,251,488,512.43/117,134.54
  6. Step 6: Final answer
    x = 87,518.92

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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.