Home / 135,889.32-203,755.50-52,686.12

Finding the Fourth Proportional to 135,889.32, 203,755.50 and 52,686.12

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Solution

The fourth proportional to 135,889.32, 203,755.50 and 52,686.12 is: 78,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,889.32 : 203,755.50 = 52,686.12 : x
  2. Step 2: Convert to fraction form
    135,889.32/203,755.50 = 52,686.12/x
  3. Step 3: Cross multiply
    135,889.32x = 203,755.50 × 52,686.12
  4. Step 4: Simplify right side
    135,889.32x = 10,735,086,723.66
  5. Step 5: Solve for x
    x = 10,735,086,723.66/135,889.32
  6. Step 6: Final answer
    x = 78,998.75

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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.