Home / 99,768.25-149,658.72-40,571.56

Finding the Fourth Proportional to 99,768.25, 149,658.72 and 40,571.56

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Solution

The fourth proportional to 99,768.25, 149,658.72 and 40,571.56 is: 60,859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,768.25 : 149,658.72 = 40,571.56 : x
  2. Step 2: Convert to fraction form
    99,768.25/149,658.72 = 40,571.56/x
  3. Step 3: Cross multiply
    99,768.25x = 149,658.72 × 40,571.56
  4. Step 4: Simplify right side
    99,768.25x = 6,071,887,738.00
  5. Step 5: Solve for x
    x = 6,071,887,738.00/99,768.25
  6. Step 6: Final answer
    x = 60,859.92

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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.