Home / 284,857.12-427,285.14-107,403.94

Finding the Fourth Proportional to 284,857.12, 427,285.14 and 107,403.94

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Solution

The fourth proportional to 284,857.12, 427,285.14 and 107,403.94 is: 161,105.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,857.12 : 427,285.14 = 107,403.94 : x
  2. Step 2: Convert to fraction form
    284,857.12/427,285.14 = 107,403.94/x
  3. Step 3: Cross multiply
    284,857.12x = 427,285.14 × 107,403.94
  4. Step 4: Simplify right side
    284,857.12x = 45,892,107,539.45
  5. Step 5: Solve for x
    x = 45,892,107,539.45/284,857.12
  6. Step 6: Final answer
    x = 161,105.71

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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.