Home / 254,629.88-381,986.14-86,160.56

Finding the Fourth Proportional to 254,629.88, 381,986.14 and 86,160.56

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Solution

The fourth proportional to 254,629.88, 381,986.14 and 86,160.56 is: 129,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,629.88 : 381,986.14 = 86,160.56 : x
  2. Step 2: Convert to fraction form
    254,629.88/381,986.14 = 86,160.56/x
  3. Step 3: Cross multiply
    254,629.88x = 381,986.14 × 86,160.56
  4. Step 4: Simplify right side
    254,629.88x = 32,912,139,734.64
  5. Step 5: Solve for x
    x = 32,912,139,734.64/254,629.88
  6. Step 6: Final answer
    x = 129,254.82

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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.