Home / 156,058.29-215,361.44-91,514.39

Finding the Fourth Proportional to 156,058.29, 215,361.44 and 91,514.39

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Solution

The fourth proportional to 156,058.29, 215,361.44 and 91,514.39 is: 126,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,058.29 : 215,361.44 = 91,514.39 : x
  2. Step 2: Convert to fraction form
    156,058.29/215,361.44 = 91,514.39/x
  3. Step 3: Cross multiply
    156,058.29x = 215,361.44 × 91,514.39
  4. Step 4: Simplify right side
    156,058.29x = 19,708,669,963.10
  5. Step 5: Solve for x
    x = 19,708,669,963.10/156,058.29
  6. Step 6: Final answer
    x = 126,290.44

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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.