Home / 100,945.26-138,295.50-97,161.72

Finding the Fourth Proportional to 100,945.26, 138,295.50 and 97,161.72

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Solution

The fourth proportional to 100,945.26, 138,295.50 and 97,161.72 is: 133,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,945.26 : 138,295.50 = 97,161.72 : x
  2. Step 2: Convert to fraction form
    100,945.26/138,295.50 = 97,161.72/x
  3. Step 3: Cross multiply
    100,945.26x = 138,295.50 × 97,161.72
  4. Step 4: Simplify right side
    100,945.26x = 13,437,028,648.26
  5. Step 5: Solve for x
    x = 13,437,028,648.26/100,945.26
  6. Step 6: Final answer
    x = 133,112.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.