Home / 171,435.40-257,194.16-71,540.02

Finding the Fourth Proportional to 171,435.40, 257,194.16 and 71,540.02

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Solution

The fourth proportional to 171,435.40, 257,194.16 and 71,540.02 is: 107,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,435.40 : 257,194.16 = 71,540.02 : x
  2. Step 2: Convert to fraction form
    171,435.40/257,194.16 = 71,540.02/x
  3. Step 3: Cross multiply
    171,435.40x = 257,194.16 × 71,540.02
  4. Step 4: Simplify right side
    171,435.40x = 18,399,675,350.28
  5. Step 5: Solve for x
    x = 18,399,675,350.28/171,435.40
  6. Step 6: Final answer
    x = 107,327.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.