Home / 285,327.91-428,178.60-107,834.94

Finding the Fourth Proportional to 285,327.91, 428,178.60 and 107,834.94

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Solution

The fourth proportional to 285,327.91, 428,178.60 and 107,834.94 is: 161,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,327.91 : 428,178.60 = 107,834.94 : x
  2. Step 2: Convert to fraction form
    285,327.91/428,178.60 = 107,834.94/x
  3. Step 3: Cross multiply
    285,327.91x = 428,178.60 × 107,834.94
  4. Step 4: Simplify right side
    285,327.91x = 46,172,613,101.11
  5. Step 5: Solve for x
    x = 46,172,613,101.11/285,327.91
  6. Step 6: Final answer
    x = 161,822.98

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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.