Home / 135,656.64-203,519.52-42,163.20

Finding the Fourth Proportional to 135,656.64, 203,519.52 and 42,163.20

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Solution

The fourth proportional to 135,656.64, 203,519.52 and 42,163.20 is: 63,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,656.64 : 203,519.52 = 42,163.20 : x
  2. Step 2: Convert to fraction form
    135,656.64/203,519.52 = 42,163.20/x
  3. Step 3: Cross multiply
    135,656.64x = 203,519.52 × 42,163.20
  4. Step 4: Simplify right side
    135,656.64x = 8,581,034,225.66
  5. Step 5: Solve for x
    x = 8,581,034,225.66/135,656.64
  6. Step 6: Final answer
    x = 63,255.54

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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.