Home / 135,760.42-187,353.66-75,335.50

Finding the Fourth Proportional to 135,760.42, 187,353.66 and 75,335.50

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Solution

The fourth proportional to 135,760.42, 187,353.66 and 75,335.50 is: 103,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,760.42 : 187,353.66 = 75,335.50 : x
  2. Step 2: Convert to fraction form
    135,760.42/187,353.66 = 75,335.50/x
  3. Step 3: Cross multiply
    135,760.42x = 187,353.66 × 75,335.50
  4. Step 4: Simplify right side
    135,760.42x = 14,114,381,652.93
  5. Step 5: Solve for x
    x = 14,114,381,652.93/135,760.42
  6. Step 6: Final answer
    x = 103,965.37

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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.