Home / 109,366.20-164,114.10-72,033.30

Finding the Fourth Proportional to 109,366.20, 164,114.10 and 72,033.30

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Solution

The fourth proportional to 109,366.20, 164,114.10 and 72,033.30 is: 108,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,366.20 : 164,114.10 = 72,033.30 : x
  2. Step 2: Convert to fraction form
    109,366.20/164,114.10 = 72,033.30/x
  3. Step 3: Cross multiply
    109,366.20x = 164,114.10 × 72,033.30
  4. Step 4: Simplify right side
    109,366.20x = 11,821,680,199.53
  5. Step 5: Solve for x
    x = 11,821,680,199.53/109,366.20
  6. Step 6: Final answer
    x = 108,092.63

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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.