Home / 113,828.40-170,627.40-67,057.20

Finding the Fourth Proportional to 113,828.40, 170,627.40 and 67,057.20

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Solution

The fourth proportional to 113,828.40, 170,627.40 and 67,057.20 is: 100,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,828.40 : 170,627.40 = 67,057.20 : x
  2. Step 2: Convert to fraction form
    113,828.40/170,627.40 = 67,057.20/x
  3. Step 3: Cross multiply
    113,828.40x = 170,627.40 × 67,057.20
  4. Step 4: Simplify right side
    113,828.40x = 11,441,795,687.28
  5. Step 5: Solve for x
    x = 11,441,795,687.28/113,828.40
  6. Step 6: Final answer
    x = 100,517.93

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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.