Home / 140,682.49-194,142.41-77,026.21

Finding the Fourth Proportional to 140,682.49, 194,142.41 and 77,026.21

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Solution

The fourth proportional to 140,682.49, 194,142.41 and 77,026.21 is: 106,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,682.49 : 194,142.41 = 77,026.21 : x
  2. Step 2: Convert to fraction form
    140,682.49/194,142.41 = 77,026.21/x
  3. Step 3: Cross multiply
    140,682.49x = 194,142.41 × 77,026.21
  4. Step 4: Simplify right side
    140,682.49x = 14,954,053,657.44
  5. Step 5: Solve for x
    x = 14,954,053,657.44/140,682.49
  6. Step 6: Final answer
    x = 106,296.48

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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.