Home / 209,282.74-313,925.47-67,149.61

Finding the Fourth Proportional to 209,282.74, 313,925.47 and 67,149.61

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Solution

The fourth proportional to 209,282.74, 313,925.47 and 67,149.61 is: 100,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,282.74 : 313,925.47 = 67,149.61 : x
  2. Step 2: Convert to fraction form
    209,282.74/313,925.47 = 67,149.61/x
  3. Step 3: Cross multiply
    209,282.74x = 313,925.47 × 67,149.61
  4. Step 4: Simplify right side
    209,282.74x = 21,079,972,304.60
  5. Step 5: Solve for x
    x = 21,079,972,304.60/209,282.74
  6. Step 6: Final answer
    x = 100,724.85

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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.