Home / 109,512.21-164,419.60-75,694.93

Finding the Fourth Proportional to 109,512.21, 164,419.60 and 75,694.93

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Solution

The fourth proportional to 109,512.21, 164,419.60 and 75,694.93 is: 113,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,512.21 : 164,419.60 = 75,694.93 : x
  2. Step 2: Convert to fraction form
    109,512.21/164,419.60 = 75,694.93/x
  3. Step 3: Cross multiply
    109,512.21x = 164,419.60 × 75,694.93
  4. Step 4: Simplify right side
    109,512.21x = 12,445,730,112.63
  5. Step 5: Solve for x
    x = 12,445,730,112.63/109,512.21
  6. Step 6: Final answer
    x = 113,646.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.