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Finding the Fourth Proportional to 140,703.88, 194,181.57 and 80,275.85

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Solution

The fourth proportional to 140,703.88, 194,181.57 and 80,275.85 is: 110,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703.88 : 194,181.57 = 80,275.85 : x
  2. Step 2: Convert to fraction form
    140,703.88/194,181.57 = 80,275.85/x
  3. Step 3: Cross multiply
    140,703.88x = 194,181.57 × 80,275.85
  4. Step 4: Simplify right side
    140,703.88x = 15,588,090,184.71
  5. Step 5: Solve for x
    x = 15,588,090,184.71/140,703.88
  6. Step 6: Final answer
    x = 110,786.50

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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.