Home / 105,634.13-158,344.52-66,218.87

Finding the Fourth Proportional to 105,634.13, 158,344.52 and 66,218.87

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Solution

The fourth proportional to 105,634.13, 158,344.52 and 66,218.87 is: 99,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,634.13 : 158,344.52 = 66,218.87 : x
  2. Step 2: Convert to fraction form
    105,634.13/158,344.52 = 66,218.87/x
  3. Step 3: Cross multiply
    105,634.13x = 158,344.52 × 66,218.87
  4. Step 4: Simplify right side
    105,634.13x = 10,485,394,854.00
  5. Step 5: Solve for x
    x = 10,485,394,854.00/105,634.13
  6. Step 6: Final answer
    x = 99,261.43

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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.