Home / 118,721.16-163,833.66-67,732.56

Finding the Fourth Proportional to 118,721.16, 163,833.66 and 67,732.56

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Solution

The fourth proportional to 118,721.16, 163,833.66 and 67,732.56 is: 93,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,721.16 : 163,833.66 = 67,732.56 : x
  2. Step 2: Convert to fraction form
    118,721.16/163,833.66 = 67,732.56/x
  3. Step 3: Cross multiply
    118,721.16x = 163,833.66 × 67,732.56
  4. Step 4: Simplify right side
    118,721.16x = 11,096,873,205.97
  5. Step 5: Solve for x
    x = 11,096,873,205.97/118,721.16
  6. Step 6: Final answer
    x = 93,470.05

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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.