Home / 135,541.44-187,054.38-75,118.68

Finding the Fourth Proportional to 135,541.44, 187,054.38 and 75,118.68

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Solution

The fourth proportional to 135,541.44, 187,054.38 and 75,118.68 is: 103,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,541.44 : 187,054.38 = 75,118.68 : x
  2. Step 2: Convert to fraction form
    135,541.44/187,054.38 = 75,118.68/x
  3. Step 3: Cross multiply
    135,541.44x = 187,054.38 × 75,118.68
  4. Step 4: Simplify right side
    135,541.44x = 14,051,278,113.82
  5. Step 5: Solve for x
    x = 14,051,278,113.82/135,541.44
  6. Step 6: Final answer
    x = 103,667.76

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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.