Home / 118,305.90-163,260-67,317.53

Finding the Fourth Proportional to 118,305.90, 163,260 and 67,317.53

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Solution

The fourth proportional to 118,305.90, 163,260 and 67,317.53 is: 92,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.90 : 163,260 = 67,317.53 : x
  2. Step 2: Convert to fraction form
    118,305.90/163,260 = 67,317.53/x
  3. Step 3: Cross multiply
    118,305.90x = 163,260 × 67,317.53
  4. Step 4: Simplify right side
    118,305.90x = 10,990,259,947.80
  5. Step 5: Solve for x
    x = 10,990,259,947.80/118,305.90
  6. Step 6: Final answer
    x = 92,896.97

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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.