Home / 100,812.52-151,131.30-50,850.91

Finding the Fourth Proportional to 100,812.52, 151,131.30 and 50,850.91

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Solution

The fourth proportional to 100,812.52, 151,131.30 and 50,850.91 is: 76,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812.52 : 151,131.30 = 50,850.91 : x
  2. Step 2: Convert to fraction form
    100,812.52/151,131.30 = 50,850.91/x
  3. Step 3: Cross multiply
    100,812.52x = 151,131.30 × 50,850.91
  4. Step 4: Simplify right side
    100,812.52x = 7,685,164,134.48
  5. Step 5: Solve for x
    x = 7,685,164,134.48/100,812.52
  6. Step 6: Final answer
    x = 76,232.24

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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.