Home / 159,211.22-219,742.88-91,273.80

Finding the Fourth Proportional to 159,211.22, 219,742.88 and 91,273.80

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Solution

The fourth proportional to 159,211.22, 219,742.88 and 91,273.80 is: 125,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,211.22 : 219,742.88 = 91,273.80 : x
  2. Step 2: Convert to fraction form
    159,211.22/219,742.88 = 91,273.80/x
  3. Step 3: Cross multiply
    159,211.22x = 219,742.88 × 91,273.80
  4. Step 4: Simplify right side
    159,211.22x = 20,056,767,680.54
  5. Step 5: Solve for x
    x = 20,056,767,680.54/159,211.22
  6. Step 6: Final answer
    x = 125,975.84

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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.