Home / 231,964.10-320,105.24-135,161.91

Finding the Fourth Proportional to 231,964.10, 320,105.24 and 135,161.91

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Solution

The fourth proportional to 231,964.10, 320,105.24 and 135,161.91 is: 186,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,964.10 : 320,105.24 = 135,161.91 : x
  2. Step 2: Convert to fraction form
    231,964.10/320,105.24 = 135,161.91/x
  3. Step 3: Cross multiply
    231,964.10x = 320,105.24 × 135,161.91
  4. Step 4: Simplify right side
    231,964.10x = 43,266,035,639.41
  5. Step 5: Solve for x
    x = 43,266,035,639.41/231,964.10
  6. Step 6: Final answer
    x = 186,520.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.