Home / 140,771.44-194,264.69-77,109.49

Finding the Fourth Proportional to 140,771.44, 194,264.69 and 77,109.49

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Solution

The fourth proportional to 140,771.44, 194,264.69 and 77,109.49 is: 106,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,771.44 : 194,264.69 = 77,109.49 : x
  2. Step 2: Convert to fraction form
    140,771.44/194,264.69 = 77,109.49/x
  3. Step 3: Cross multiply
    140,771.44x = 194,264.69 × 77,109.49
  4. Step 4: Simplify right side
    140,771.44x = 14,979,650,299.70
  5. Step 5: Solve for x
    x = 14,979,650,299.70/140,771.44
  6. Step 6: Final answer
    x = 106,411.15

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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.