Home / 259,166.25-388,771.65-72,177.75

Finding the Fourth Proportional to 259,166.25, 388,771.65 and 72,177.75

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Solution

The fourth proportional to 259,166.25, 388,771.65 and 72,177.75 is: 108,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,166.25 : 388,771.65 = 72,177.75 : x
  2. Step 2: Convert to fraction form
    259,166.25/388,771.65 = 72,177.75/x
  3. Step 3: Cross multiply
    259,166.25x = 388,771.65 × 72,177.75
  4. Step 4: Simplify right side
    259,166.25x = 28,060,662,960.79
  5. Step 5: Solve for x
    x = 28,060,662,960.79/259,166.25
  6. Step 6: Final answer
    x = 108,272.83

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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.