Home / 100,944.19-151,399.78-71,272.07

Finding the Fourth Proportional to 100,944.19, 151,399.78 and 71,272.07

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Solution

The fourth proportional to 100,944.19, 151,399.78 and 71,272.07 is: 106,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,944.19 : 151,399.78 = 71,272.07 : x
  2. Step 2: Convert to fraction form
    100,944.19/151,399.78 = 71,272.07/x
  3. Step 3: Cross multiply
    100,944.19x = 151,399.78 × 71,272.07
  4. Step 4: Simplify right side
    100,944.19x = 10,790,574,782.97
  5. Step 5: Solve for x
    x = 10,790,574,782.97/100,944.19
  6. Step 6: Final answer
    x = 106,896.44

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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.