Home / 109,690.20-164,600.10-80,033.40

Finding the Fourth Proportional to 109,690.20, 164,600.10 and 80,033.40

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Solution

The fourth proportional to 109,690.20, 164,600.10 and 80,033.40 is: 120,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,690.20 : 164,600.10 = 80,033.40 : x
  2. Step 2: Convert to fraction form
    109,690.20/164,600.10 = 80,033.40/x
  3. Step 3: Cross multiply
    109,690.20x = 164,600.10 × 80,033.40
  4. Step 4: Simplify right side
    109,690.20x = 13,173,505,643.34
  5. Step 5: Solve for x
    x = 13,173,505,643.34/109,690.20
  6. Step 6: Final answer
    x = 120,097.38

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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.