Home / 140,600.75-210,857.73-40,768.30

Finding the Fourth Proportional to 140,600.75, 210,857.73 and 40,768.30

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Solution

The fourth proportional to 140,600.75, 210,857.73 and 40,768.30 is: 61,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,600.75 : 210,857.73 = 40,768.30 : x
  2. Step 2: Convert to fraction form
    140,600.75/210,857.73 = 40,768.30/x
  3. Step 3: Cross multiply
    140,600.75x = 210,857.73 × 40,768.30
  4. Step 4: Simplify right side
    140,600.75x = 8,596,310,979.47
  5. Step 5: Solve for x
    x = 8,596,310,979.47/140,600.75
  6. Step 6: Final answer
    x = 61,139.87

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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.