Home / 135,562.29-187,071.16-75,138.56

Finding the Fourth Proportional to 135,562.29, 187,071.16 and 75,138.56

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Solution

The fourth proportional to 135,562.29, 187,071.16 and 75,138.56 is: 103,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,562.29 : 187,071.16 = 75,138.56 : x
  2. Step 2: Convert to fraction form
    135,562.29/187,071.16 = 75,138.56/x
  3. Step 3: Cross multiply
    135,562.29x = 187,071.16 × 75,138.56
  4. Step 4: Simplify right side
    135,562.29x = 14,056,256,268.88
  5. Step 5: Solve for x
    x = 14,056,256,268.88/135,562.29
  6. Step 6: Final answer
    x = 103,688.54

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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.