Home / 140,736.80-194,217.04-76,206.72

Finding the Fourth Proportional to 140,736.80, 194,217.04 and 76,206.72

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Solution

The fourth proportional to 140,736.80, 194,217.04 and 76,206.72 is: 105,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,736.80 : 194,217.04 = 76,206.72 : x
  2. Step 2: Convert to fraction form
    140,736.80/194,217.04 = 76,206.72/x
  3. Step 3: Cross multiply
    140,736.80x = 194,217.04 × 76,206.72
  4. Step 4: Simplify right side
    140,736.80x = 14,800,643,586.51
  5. Step 5: Solve for x
    x = 14,800,643,586.51/140,736.80
  6. Step 6: Final answer
    x = 105,165.41

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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.