Home / 140,639.40-194,081.00-76,107.26

Finding the Fourth Proportional to 140,639.40, 194,081.00 and 76,107.26

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Solution

The fourth proportional to 140,639.40, 194,081.00 and 76,107.26 is: 105,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.40 : 194,081.00 = 76,107.26 : x
  2. Step 2: Convert to fraction form
    140,639.40/194,081.00 = 76,107.26/x
  3. Step 3: Cross multiply
    140,639.40x = 194,081.00 × 76,107.26
  4. Step 4: Simplify right side
    140,639.40x = 14,770,971,777.12
  5. Step 5: Solve for x
    x = 14,770,971,777.12/140,639.40
  6. Step 6: Final answer
    x = 105,027.27

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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.