Home / 135,761.81-187,348.48-75,331.96

Finding the Fourth Proportional to 135,761.81, 187,348.48 and 75,331.96

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Solution

The fourth proportional to 135,761.81, 187,348.48 and 75,331.96 is: 103,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,761.81 : 187,348.48 = 75,331.96 : x
  2. Step 2: Convert to fraction form
    135,761.81/187,348.48 = 75,331.96/x
  3. Step 3: Cross multiply
    135,761.81x = 187,348.48 × 75,331.96
  4. Step 4: Simplify right side
    135,761.81x = 14,113,327,544.72
  5. Step 5: Solve for x
    x = 14,113,327,544.72/135,761.81
  6. Step 6: Final answer
    x = 103,956.54

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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.