Home / 135,811.42-187,410.88-75,379.13

Finding the Fourth Proportional to 135,811.42, 187,410.88 and 75,379.13

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Solution

The fourth proportional to 135,811.42, 187,410.88 and 75,379.13 is: 104,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,811.42 : 187,410.88 = 75,379.13 : x
  2. Step 2: Convert to fraction form
    135,811.42/187,410.88 = 75,379.13/x
  3. Step 3: Cross multiply
    135,811.42x = 187,410.88 × 75,379.13
  4. Step 4: Simplify right side
    135,811.42x = 14,126,869,086.93
  5. Step 5: Solve for x
    x = 14,126,869,086.93/135,811.42
  6. Step 6: Final answer
    x = 104,018.27

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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.