Home / 109,985.56-164,604.34-67,892.20

Finding the Fourth Proportional to 109,985.56, 164,604.34 and 67,892.20

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Solution

The fourth proportional to 109,985.56, 164,604.34 and 67,892.20 is: 101,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,985.56 : 164,604.34 = 67,892.20 : x
  2. Step 2: Convert to fraction form
    109,985.56/164,604.34 = 67,892.20/x
  3. Step 3: Cross multiply
    109,985.56x = 164,604.34 × 67,892.20
  4. Step 4: Simplify right side
    109,985.56x = 11,175,350,772.15
  5. Step 5: Solve for x
    x = 11,175,350,772.15/109,985.56
  6. Step 6: Final answer
    x = 101,607.44

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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.