Home / 140,685.62-194,128.08-80,252.66

Finding the Fourth Proportional to 140,685.62, 194,128.08 and 80,252.66

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Solution

The fourth proportional to 140,685.62, 194,128.08 and 80,252.66 is: 110,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.62 : 194,128.08 = 80,252.66 : x
  2. Step 2: Convert to fraction form
    140,685.62/194,128.08 = 80,252.66/x
  3. Step 3: Cross multiply
    140,685.62x = 194,128.08 × 80,252.66
  4. Step 4: Simplify right side
    140,685.62x = 15,579,294,800.69
  5. Step 5: Solve for x
    x = 15,579,294,800.69/140,685.62
  6. Step 6: Final answer
    x = 110,738.36

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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.