Home / 140,743.22-194,198.36-80,312.36

Finding the Fourth Proportional to 140,743.22, 194,198.36 and 80,312.36

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Solution

The fourth proportional to 140,743.22, 194,198.36 and 80,312.36 is: 110,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,743.22 : 194,198.36 = 80,312.36 : x
  2. Step 2: Convert to fraction form
    140,743.22/194,198.36 = 80,312.36/x
  3. Step 3: Cross multiply
    140,743.22x = 194,198.36 × 80,312.36
  4. Step 4: Simplify right side
    140,743.22x = 15,596,528,599.73
  5. Step 5: Solve for x
    x = 15,596,528,599.73/140,743.22
  6. Step 6: Final answer
    x = 110,815.49

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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.