Home / 231,472.36-319,535.22-135,985.24

Finding the Fourth Proportional to 231,472.36, 319,535.22 and 135,985.24

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Solution

The fourth proportional to 231,472.36, 319,535.22 and 135,985.24 is: 187,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,472.36 : 319,535.22 = 135,985.24 : x
  2. Step 2: Convert to fraction form
    231,472.36/319,535.22 = 135,985.24/x
  3. Step 3: Cross multiply
    231,472.36x = 319,535.22 × 135,985.24
  4. Step 4: Simplify right side
    231,472.36x = 43,452,073,580.15
  5. Step 5: Solve for x
    x = 43,452,073,580.15/231,472.36
  6. Step 6: Final answer
    x = 187,720.35

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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.