Home / 231,899.13-320,083.79-136,436.58

Finding the Fourth Proportional to 231,899.13, 320,083.79 and 136,436.58

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Solution

The fourth proportional to 231,899.13, 320,083.79 and 136,436.58 is: 188,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,899.13 : 320,083.79 = 136,436.58 : x
  2. Step 2: Convert to fraction form
    231,899.13/320,083.79 = 136,436.58/x
  3. Step 3: Cross multiply
    231,899.13x = 320,083.79 × 136,436.58
  4. Step 4: Simplify right side
    231,899.13x = 43,671,136,938.86
  5. Step 5: Solve for x
    x = 43,671,136,938.86/231,899.13
  6. Step 6: Final answer
    x = 188,319.54

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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.