Home / 140,784.27-194,286.77-77,125.96

Finding the Fourth Proportional to 140,784.27, 194,286.77 and 77,125.96

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Solution

The fourth proportional to 140,784.27, 194,286.77 and 77,125.96 is: 106,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,784.27 : 194,286.77 = 77,125.96 : x
  2. Step 2: Convert to fraction form
    140,784.27/194,286.77 = 77,125.96/x
  3. Step 3: Cross multiply
    140,784.27x = 194,286.77 × 77,125.96
  4. Step 4: Simplify right side
    140,784.27x = 14,984,553,651.55
  5. Step 5: Solve for x
    x = 14,984,553,651.55/140,784.27
  6. Step 6: Final answer
    x = 106,436.28

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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.