Home / 135,769.32-203,654.78-40,999.72

Finding the Fourth Proportional to 135,769.32, 203,654.78 and 40,999.72

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Solution

The fourth proportional to 135,769.32, 203,654.78 and 40,999.72 is: 61,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,769.32 : 203,654.78 = 40,999.72 : x
  2. Step 2: Convert to fraction form
    135,769.32/203,654.78 = 40,999.72/x
  3. Step 3: Cross multiply
    135,769.32x = 203,654.78 × 40,999.72
  4. Step 4: Simplify right side
    135,769.32x = 8,349,788,956.66
  5. Step 5: Solve for x
    x = 8,349,788,956.66/135,769.32
  6. Step 6: Final answer
    x = 61,499.82

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1.5x scale

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.