Home / 159,321.26-219,837.60-91,325.72

Finding the Fourth Proportional to 159,321.26, 219,837.60 and 91,325.72

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Solution

The fourth proportional to 159,321.26, 219,837.60 and 91,325.72 is: 126,014.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,321.26 : 219,837.60 = 91,325.72 : x
  2. Step 2: Convert to fraction form
    159,321.26/219,837.60 = 91,325.72/x
  3. Step 3: Cross multiply
    159,321.26x = 219,837.60 × 91,325.72
  4. Step 4: Simplify right side
    159,321.26x = 20,076,827,103.07
  5. Step 5: Solve for x
    x = 20,076,827,103.07/159,321.26
  6. Step 6: Final answer
    x = 126,014.74

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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.