Home / 171,327.38-256,710.17-121,317.70

Finding the Fourth Proportional to 171,327.38, 256,710.17 and 121,317.70

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Solution

The fourth proportional to 171,327.38, 256,710.17 and 121,317.70 is: 181,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,327.38 : 256,710.17 = 121,317.70 : x
  2. Step 2: Convert to fraction form
    171,327.38/256,710.17 = 121,317.70/x
  3. Step 3: Cross multiply
    171,327.38x = 256,710.17 × 121,317.70
  4. Step 4: Simplify right side
    171,327.38x = 31,143,485,500.87
  5. Step 5: Solve for x
    x = 31,143,485,500.87/171,327.38
  6. Step 6: Final answer
    x = 181,777.64

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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.