Home / 127,865.20-191,797.80-56,771.14

Finding the Fourth Proportional to 127,865.20, 191,797.80 and 56,771.14

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Solution

The fourth proportional to 127,865.20, 191,797.80 and 56,771.14 is: 85,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,865.20 : 191,797.80 = 56,771.14 : x
  2. Step 2: Convert to fraction form
    127,865.20/191,797.80 = 56,771.14/x
  3. Step 3: Cross multiply
    127,865.20x = 191,797.80 × 56,771.14
  4. Step 4: Simplify right side
    127,865.20x = 10,888,579,755.49
  5. Step 5: Solve for x
    x = 10,888,579,755.49/127,865.20
  6. Step 6: Final answer
    x = 85,156.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.