Home / 135,811.20-203,716.08-73,875.36

Finding the Fourth Proportional to 135,811.20, 203,716.08 and 73,875.36

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Solution

The fourth proportional to 135,811.20, 203,716.08 and 73,875.36 is: 110,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,811.20 : 203,716.08 = 73,875.36 : x
  2. Step 2: Convert to fraction form
    135,811.20/203,716.08 = 73,875.36/x
  3. Step 3: Cross multiply
    135,811.20x = 203,716.08 × 73,875.36
  4. Step 4: Simplify right side
    135,811.20x = 15,049,598,747.79
  5. Step 5: Solve for x
    x = 15,049,598,747.79/135,811.20
  6. Step 6: Final answer
    x = 110,812.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.