Home / 140,153.56-210,198.78-40,291.48

Finding the Fourth Proportional to 140,153.56, 210,198.78 and 40,291.48

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Solution

The fourth proportional to 140,153.56, 210,198.78 and 40,291.48 is: 60,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153.56 : 210,198.78 = 40,291.48 : x
  2. Step 2: Convert to fraction form
    140,153.56/210,198.78 = 40,291.48/x
  3. Step 3: Cross multiply
    140,153.56x = 210,198.78 × 40,291.48
  4. Step 4: Simplify right side
    140,153.56x = 8,469,219,940.39
  5. Step 5: Solve for x
    x = 8,469,219,940.39/140,153.56
  6. Step 6: Final answer
    x = 60,428.15

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1.5x scale

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.