Home / 118,515.96-163,546.29-67,540.64

Finding the Fourth Proportional to 118,515.96, 163,546.29 and 67,540.64

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Solution

The fourth proportional to 118,515.96, 163,546.29 and 67,540.64 is: 93,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.96 : 163,546.29 = 67,540.64 : x
  2. Step 2: Convert to fraction form
    118,515.96/163,546.29 = 67,540.64/x
  3. Step 3: Cross multiply
    118,515.96x = 163,546.29 × 67,540.64
  4. Step 4: Simplify right side
    118,515.96x = 11,046,020,278.49
  5. Step 5: Solve for x
    x = 11,046,020,278.49/118,515.96
  6. Step 6: Final answer
    x = 93,202.81

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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.