Home / 118,517.12-177,581.28-71,783.36

Finding the Fourth Proportional to 118,517.12, 177,581.28 and 71,783.36

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Solution

The fourth proportional to 118,517.12, 177,581.28 and 71,783.36 is: 107,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,517.12 : 177,581.28 = 71,783.36 : x
  2. Step 2: Convert to fraction form
    118,517.12/177,581.28 = 71,783.36/x
  3. Step 3: Cross multiply
    118,517.12x = 177,581.28 × 71,783.36
  4. Step 4: Simplify right side
    118,517.12x = 12,747,380,951.50
  5. Step 5: Solve for x
    x = 12,747,380,951.50/118,517.12
  6. Step 6: Final answer
    x = 107,557.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.