Home / 135,563.27-187,077.33-75,137.81

Finding the Fourth Proportional to 135,563.27, 187,077.33 and 75,137.81

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Solution

The fourth proportional to 135,563.27, 187,077.33 and 75,137.81 is: 103,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,563.27 : 187,077.33 = 75,137.81 : x
  2. Step 2: Convert to fraction form
    135,563.27/187,077.33 = 75,137.81/x
  3. Step 3: Cross multiply
    135,563.27x = 187,077.33 × 75,137.81
  4. Step 4: Simplify right side
    135,563.27x = 14,056,581,344.54
  5. Step 5: Solve for x
    x = 14,056,581,344.54/135,563.27
  6. Step 6: Final answer
    x = 103,690.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.