Home / 140,470.20-210,910.10-109,340.60

Finding the Fourth Proportional to 140,470.20, 210,910.10 and 109,340.60

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Solution

The fourth proportional to 140,470.20, 210,910.10 and 109,340.60 is: 164,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,470.20 : 210,910.10 = 109,340.60 : x
  2. Step 2: Convert to fraction form
    140,470.20/210,910.10 = 109,340.60/x
  3. Step 3: Cross multiply
    140,470.20x = 210,910.10 × 109,340.60
  4. Step 4: Simplify right side
    140,470.20x = 23,061,036,880.06
  5. Step 5: Solve for x
    x = 23,061,036,880.06/140,470.20
  6. Step 6: Final answer
    x = 164,170.31

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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.