Home / 135,421.86-203,181.39-60,535.74

Finding the Fourth Proportional to 135,421.86, 203,181.39 and 60,535.74

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Solution

The fourth proportional to 135,421.86, 203,181.39 and 60,535.74 is: 90,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,421.86 : 203,181.39 = 60,535.74 : x
  2. Step 2: Convert to fraction form
    135,421.86/203,181.39 = 60,535.74/x
  3. Step 3: Cross multiply
    135,421.86x = 203,181.39 × 60,535.74
  4. Step 4: Simplify right side
    135,421.86x = 12,299,735,797.88
  5. Step 5: Solve for x
    x = 12,299,735,797.88/135,421.86
  6. Step 6: Final answer
    x = 90,825.33

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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.