Home / 131,553.10-197,238.12-56,650.78

Finding the Fourth Proportional to 131,553.10, 197,238.12 and 56,650.78

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Solution

The fourth proportional to 131,553.10, 197,238.12 and 56,650.78 is: 84,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,553.10 : 197,238.12 = 56,650.78 : x
  2. Step 2: Convert to fraction form
    131,553.10/197,238.12 = 56,650.78/x
  3. Step 3: Cross multiply
    131,553.10x = 197,238.12 × 56,650.78
  4. Step 4: Simplify right side
    131,553.10x = 11,173,693,343.73
  5. Step 5: Solve for x
    x = 11,173,693,343.73/131,553.10
  6. Step 6: Final answer
    x = 84,936.75

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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.