Home / 140,179.82-193,448.09-76,517.62

Finding the Fourth Proportional to 140,179.82, 193,448.09 and 76,517.62

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Solution

The fourth proportional to 140,179.82, 193,448.09 and 76,517.62 is: 105,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,179.82 : 193,448.09 = 76,517.62 : x
  2. Step 2: Convert to fraction form
    140,179.82/193,448.09 = 76,517.62/x
  3. Step 3: Cross multiply
    140,179.82x = 193,448.09 × 76,517.62
  4. Step 4: Simplify right side
    140,179.82x = 14,802,187,148.02
  5. Step 5: Solve for x
    x = 14,802,187,148.02/140,179.82
  6. Step 6: Final answer
    x = 105,594.28

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1.5x scale

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.