Home / 104,076.51-143,687.46-68,329.20

Finding the Fourth Proportional to 104,076.51, 143,687.46 and 68,329.20

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Solution

The fourth proportional to 104,076.51, 143,687.46 and 68,329.20 is: 94,334.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,076.51 : 143,687.46 = 68,329.20 : x
  2. Step 2: Convert to fraction form
    104,076.51/143,687.46 = 68,329.20/x
  3. Step 3: Cross multiply
    104,076.51x = 143,687.46 × 68,329.20
  4. Step 4: Simplify right side
    104,076.51x = 9,818,049,191.83
  5. Step 5: Solve for x
    x = 9,818,049,191.83/104,076.51
  6. Step 6: Final answer
    x = 94,334.92

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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.