Home / 103,634.56-143,010.24-61,177.60

Finding the Fourth Proportional to 103,634.56, 143,010.24 and 61,177.60

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Solution

The fourth proportional to 103,634.56, 143,010.24 and 61,177.60 is: 84,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,634.56 : 143,010.24 = 61,177.60 : x
  2. Step 2: Convert to fraction form
    103,634.56/143,010.24 = 61,177.60/x
  3. Step 3: Cross multiply
    103,634.56x = 143,010.24 × 61,177.60
  4. Step 4: Simplify right side
    103,634.56x = 8,749,023,258.62
  5. Step 5: Solve for x
    x = 8,749,023,258.62/103,634.56
  6. Step 6: Final answer
    x = 84,421.87

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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.