Home / 118,049.81-162,879.86-75,665.75

Finding the Fourth Proportional to 118,049.81, 162,879.86 and 75,665.75

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Solution

The fourth proportional to 118,049.81, 162,879.86 and 75,665.75 is: 104,400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,049.81 : 162,879.86 = 75,665.75 : x
  2. Step 2: Convert to fraction form
    118,049.81/162,879.86 = 75,665.75/x
  3. Step 3: Cross multiply
    118,049.81x = 162,879.86 × 75,665.75
  4. Step 4: Simplify right side
    118,049.81x = 12,324,426,141.56
  5. Step 5: Solve for x
    x = 12,324,426,141.56/118,049.81
  6. Step 6: Final answer
    x = 104,400.22

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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.