Home / 104,039.04-143,644.26-68,289.84

Finding the Fourth Proportional to 104,039.04, 143,644.26 and 68,289.84

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Solution

The fourth proportional to 104,039.04, 143,644.26 and 68,289.84 is: 94,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,039.04 : 143,644.26 = 68,289.84 : x
  2. Step 2: Convert to fraction form
    104,039.04/143,644.26 = 68,289.84/x
  3. Step 3: Cross multiply
    104,039.04x = 143,644.26 × 68,289.84
  4. Step 4: Simplify right side
    104,039.04x = 9,809,443,532.32
  5. Step 5: Solve for x
    x = 9,809,443,532.32/104,039.04
  6. Step 6: Final answer
    x = 94,286.18

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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.