Home / 101,945.27-140,655.33-61,629.75

Finding the Fourth Proportional to 101,945.27, 140,655.33 and 61,629.75

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Solution

The fourth proportional to 101,945.27, 140,655.33 and 61,629.75 is: 85,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.27 : 140,655.33 = 61,629.75 : x
  2. Step 2: Convert to fraction form
    101,945.27/140,655.33 = 61,629.75/x
  3. Step 3: Cross multiply
    101,945.27x = 140,655.33 × 61,629.75
  4. Step 4: Simplify right side
    101,945.27x = 8,668,552,824.07
  5. Step 5: Solve for x
    x = 8,668,552,824.07/101,945.27
  6. Step 6: Final answer
    x = 85,031.44

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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.