Home / 116,236.26-160,454.79-78,561.54

Finding the Fourth Proportional to 116,236.26, 160,454.79 and 78,561.54

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Solution

The fourth proportional to 116,236.26, 160,454.79 and 78,561.54 is: 108,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,236.26 : 160,454.79 = 78,561.54 : x
  2. Step 2: Convert to fraction form
    116,236.26/160,454.79 = 78,561.54/x
  3. Step 3: Cross multiply
    116,236.26x = 160,454.79 × 78,561.54
  4. Step 4: Simplify right side
    116,236.26x = 12,605,575,402.78
  5. Step 5: Solve for x
    x = 12,605,575,402.78/116,236.26
  6. Step 6: Final answer
    x = 108,447.88

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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.