Home / 101,039.40-151,887.15-71,660.70

Finding the Fourth Proportional to 101,039.40, 151,887.15 and 71,660.70

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Solution

The fourth proportional to 101,039.40, 151,887.15 and 71,660.70 is: 107,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,039.40 : 151,887.15 = 71,660.70 : x
  2. Step 2: Convert to fraction form
    101,039.40/151,887.15 = 71,660.70/x
  3. Step 3: Cross multiply
    101,039.40x = 151,887.15 × 71,660.70
  4. Step 4: Simplify right side
    101,039.40x = 10,884,339,490.01
  5. Step 5: Solve for x
    x = 10,884,339,490.01/101,039.40
  6. Step 6: Final answer
    x = 107,723.71

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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.