Home / 140,701.88-194,168.58-77,039.84

Finding the Fourth Proportional to 140,701.88, 194,168.58 and 77,039.84

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Solution

The fourth proportional to 140,701.88, 194,168.58 and 77,039.84 is: 106,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,701.88 : 194,168.58 = 77,039.84 : x
  2. Step 2: Convert to fraction form
    140,701.88/194,168.58 = 77,039.84/x
  3. Step 3: Cross multiply
    140,701.88x = 194,168.58 × 77,039.84
  4. Step 4: Simplify right side
    140,701.88x = 14,958,716,336.23
  5. Step 5: Solve for x
    x = 14,958,716,336.23/140,701.88
  6. Step 6: Final answer
    x = 106,314.97

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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.