Home / 254,171.48-380,991.18-85,633.56

Finding the Fourth Proportional to 254,171.48, 380,991.18 and 85,633.56

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Solution

The fourth proportional to 254,171.48, 380,991.18 and 85,633.56 is: 128,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,171.48 : 380,991.18 = 85,633.56 : x
  2. Step 2: Convert to fraction form
    254,171.48/380,991.18 = 85,633.56/x
  3. Step 3: Cross multiply
    254,171.48x = 380,991.18 × 85,633.56
  4. Step 4: Simplify right side
    254,171.48x = 32,625,631,072.00
  5. Step 5: Solve for x
    x = 32,625,631,072.00/254,171.48
  6. Step 6: Final answer
    x = 128,360.71

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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.