Home / 115,194.76-159,030.44-80,845.19

Finding the Fourth Proportional to 115,194.76, 159,030.44 and 80,845.19

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Solution

The fourth proportional to 115,194.76, 159,030.44 and 80,845.19 is: 111,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,194.76 : 159,030.44 = 80,845.19 : x
  2. Step 2: Convert to fraction form
    115,194.76/159,030.44 = 80,845.19/x
  3. Step 3: Cross multiply
    115,194.76x = 159,030.44 × 80,845.19
  4. Step 4: Simplify right side
    115,194.76x = 12,856,845,837.74
  5. Step 5: Solve for x
    x = 12,856,845,837.74/115,194.76
  6. Step 6: Final answer
    x = 111,609.64

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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.