Home / 140,789.08-194,286.94-77,127.31

Finding the Fourth Proportional to 140,789.08, 194,286.94 and 77,127.31

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Solution

The fourth proportional to 140,789.08, 194,286.94 and 77,127.31 is: 106,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,789.08 : 194,286.94 = 77,127.31 : x
  2. Step 2: Convert to fraction form
    140,789.08/194,286.94 = 77,127.31/x
  3. Step 3: Cross multiply
    140,789.08x = 194,286.94 × 77,127.31
  4. Step 4: Simplify right side
    140,789.08x = 14,984,829,050.33
  5. Step 5: Solve for x
    x = 14,984,829,050.33/140,789.08
  6. Step 6: Final answer
    x = 106,434.60

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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.