Home / 140,758.21-194,239.92-77,094.64

Finding the Fourth Proportional to 140,758.21, 194,239.92 and 77,094.64

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Solution

The fourth proportional to 140,758.21, 194,239.92 and 77,094.64 is: 106,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,758.21 : 194,239.92 = 77,094.64 : x
  2. Step 2: Convert to fraction form
    140,758.21/194,239.92 = 77,094.64/x
  3. Step 3: Cross multiply
    140,758.21x = 194,239.92 × 77,094.64
  4. Step 4: Simplify right side
    140,758.21x = 14,974,856,706.03
  5. Step 5: Solve for x
    x = 14,974,856,706.03/140,758.21
  6. Step 6: Final answer
    x = 106,387.09

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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.