Home / 135,490.10-203,245.66-40,712.88

Finding the Fourth Proportional to 135,490.10, 203,245.66 and 40,712.88

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Solution

The fourth proportional to 135,490.10, 203,245.66 and 40,712.88 is: 61,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,490.10 : 203,245.66 = 40,712.88 : x
  2. Step 2: Convert to fraction form
    135,490.10/203,245.66 = 40,712.88/x
  3. Step 3: Cross multiply
    135,490.10x = 203,245.66 × 40,712.88
  4. Step 4: Simplify right side
    135,490.10x = 8,274,716,064.32
  5. Step 5: Solve for x
    x = 8,274,716,064.32/135,490.10
  6. Step 6: Final answer
    x = 61,072.48

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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.