Home / 116,255.76-160,481.16-78,581.04

Finding the Fourth Proportional to 116,255.76, 160,481.16 and 78,581.04

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Solution

The fourth proportional to 116,255.76, 160,481.16 and 78,581.04 is: 108,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,255.76 : 160,481.16 = 78,581.04 : x
  2. Step 2: Convert to fraction form
    116,255.76/160,481.16 = 78,581.04/x
  3. Step 3: Cross multiply
    116,255.76x = 160,481.16 × 78,581.04
  4. Step 4: Simplify right side
    116,255.76x = 12,610,776,453.21
  5. Step 5: Solve for x
    x = 12,610,776,453.21/116,255.76
  6. Step 6: Final answer
    x = 108,474.42

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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.