Home / 144,580.07-199,520.47-80,917.87

Finding the Fourth Proportional to 144,580.07, 199,520.47 and 80,917.87

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Solution

The fourth proportional to 144,580.07, 199,520.47 and 80,917.87 is: 111,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,580.07 : 199,520.47 = 80,917.87 : x
  2. Step 2: Convert to fraction form
    144,580.07/199,520.47 = 80,917.87/x
  3. Step 3: Cross multiply
    144,580.07x = 199,520.47 × 80,917.87
  4. Step 4: Simplify right side
    144,580.07x = 16,144,770,456.20
  5. Step 5: Solve for x
    x = 16,144,770,456.20/144,580.07
  6. Step 6: Final answer
    x = 111,666.64

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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.