Home / 103,163.14-154,789.25-55,811.59

Finding the Fourth Proportional to 103,163.14, 154,789.25 and 55,811.59

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Solution

The fourth proportional to 103,163.14, 154,789.25 and 55,811.59 is: 83,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,163.14 : 154,789.25 = 55,811.59 : x
  2. Step 2: Convert to fraction form
    103,163.14/154,789.25 = 55,811.59/x
  3. Step 3: Cross multiply
    103,163.14x = 154,789.25 × 55,811.59
  4. Step 4: Simplify right side
    103,163.14x = 8,639,034,157.41
  5. Step 5: Solve for x
    x = 8,639,034,157.41/103,163.14
  6. Step 6: Final answer
    x = 83,741.48

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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.