Home / 140,778.92-194,274.94-77,118.98

Finding the Fourth Proportional to 140,778.92, 194,274.94 and 77,118.98

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Solution

The fourth proportional to 140,778.92, 194,274.94 and 77,118.98 is: 106,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,778.92 : 194,274.94 = 77,118.98 : x
  2. Step 2: Convert to fraction form
    140,778.92/194,274.94 = 77,118.98/x
  3. Step 3: Cross multiply
    140,778.92x = 194,274.94 × 77,118.98
  4. Step 4: Simplify right side
    140,778.92x = 14,982,284,048.19
  5. Step 5: Solve for x
    x = 14,982,284,048.19/140,778.92
  6. Step 6: Final answer
    x = 106,424.20

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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.