Home / 285,330.80-427,834.20-107,843.60

Finding the Fourth Proportional to 285,330.80, 427,834.20 and 107,843.60

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Solution

The fourth proportional to 285,330.80, 427,834.20 and 107,843.60 is: 161,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,330.80 : 427,834.20 = 107,843.60 : x
  2. Step 2: Convert to fraction form
    285,330.80/427,834.20 = 107,843.60/x
  3. Step 3: Cross multiply
    285,330.80x = 427,834.20 × 107,843.60
  4. Step 4: Simplify right side
    285,330.80x = 46,139,180,331.12
  5. Step 5: Solve for x
    x = 46,139,180,331.12/285,330.80
  6. Step 6: Final answer
    x = 161,704.17

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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.