Home / 231,989.26-320,139.72-136,502.14

Finding the Fourth Proportional to 231,989.26, 320,139.72 and 136,502.14

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Solution

The fourth proportional to 231,989.26, 320,139.72 and 136,502.14 is: 188,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,989.26 : 320,139.72 = 136,502.14 : x
  2. Step 2: Convert to fraction form
    231,989.26/320,139.72 = 136,502.14/x
  3. Step 3: Cross multiply
    231,989.26x = 320,139.72 × 136,502.14
  4. Step 4: Simplify right side
    231,989.26x = 43,699,756,879.00
  5. Step 5: Solve for x
    x = 43,699,756,879.00/231,989.26
  6. Step 6: Final answer
    x = 188,369.74

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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.