Home / 135,632.85-187,165.83-75,199.96

Finding the Fourth Proportional to 135,632.85, 187,165.83 and 75,199.96

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Solution

The fourth proportional to 135,632.85, 187,165.83 and 75,199.96 is: 103,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,632.85 : 187,165.83 = 75,199.96 : x
  2. Step 2: Convert to fraction form
    135,632.85/187,165.83 = 75,199.96/x
  3. Step 3: Cross multiply
    135,632.85x = 187,165.83 × 75,199.96
  4. Step 4: Simplify right side
    135,632.85x = 14,074,862,929.37
  5. Step 5: Solve for x
    x = 14,074,862,929.37/135,632.85
  6. Step 6: Final answer
    x = 103,771.78

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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.