Home / 104,113.80-143,638.38-68,323.68

Finding the Fourth Proportional to 104,113.80, 143,638.38 and 68,323.68

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Solution

The fourth proportional to 104,113.80, 143,638.38 and 68,323.68 is: 94,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,113.80 : 143,638.38 = 68,323.68 : x
  2. Step 2: Convert to fraction form
    104,113.80/143,638.38 = 68,323.68/x
  3. Step 3: Cross multiply
    104,113.80x = 143,638.38 × 68,323.68
  4. Step 4: Simplify right side
    104,113.80x = 9,813,902,710.84
  5. Step 5: Solve for x
    x = 9,813,902,710.84/104,113.80
  6. Step 6: Final answer
    x = 94,261.31

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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.