Home / 140,661.84-194,106.06-76,987.56

Finding the Fourth Proportional to 140,661.84, 194,106.06 and 76,987.56

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Solution

The fourth proportional to 140,661.84, 194,106.06 and 76,987.56 is: 106,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,661.84 : 194,106.06 = 76,987.56 : x
  2. Step 2: Convert to fraction form
    140,661.84/194,106.06 = 76,987.56/x
  3. Step 3: Cross multiply
    140,661.84x = 194,106.06 × 76,987.56
  4. Step 4: Simplify right side
    140,661.84x = 14,943,751,940.61
  5. Step 5: Solve for x
    x = 14,943,751,940.61/140,661.84
  6. Step 6: Final answer
    x = 106,238.85

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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.