Home / 135,381.41-203,103.24-45,436.05

Finding the Fourth Proportional to 135,381.41, 203,103.24 and 45,436.05

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Solution

The fourth proportional to 135,381.41, 203,103.24 and 45,436.05 is: 68,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,381.41 : 203,103.24 = 45,436.05 : x
  2. Step 2: Convert to fraction form
    135,381.41/203,103.24 = 45,436.05/x
  3. Step 3: Cross multiply
    135,381.41x = 203,103.24 × 45,436.05
  4. Step 4: Simplify right side
    135,381.41x = 9,228,208,967.80
  5. Step 5: Solve for x
    x = 9,228,208,967.80/135,381.41
  6. Step 6: Final answer
    x = 68,164.52

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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.