Home / 140,736.48-194,209.44-77,074.56

Finding the Fourth Proportional to 140,736.48, 194,209.44 and 77,074.56

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Solution

The fourth proportional to 140,736.48, 194,209.44 and 77,074.56 is: 106,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,736.48 : 194,209.44 = 77,074.56 : x
  2. Step 2: Convert to fraction form
    140,736.48/194,209.44 = 77,074.56/x
  3. Step 3: Cross multiply
    140,736.48x = 194,209.44 × 77,074.56
  4. Step 4: Simplify right side
    140,736.48x = 14,968,607,135.85
  5. Step 5: Solve for x
    x = 14,968,607,135.85/140,736.48
  6. Step 6: Final answer
    x = 106,359.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.