Home / 135,421.09-203,150.55-56,517.25

Finding the Fourth Proportional to 135,421.09, 203,150.55 and 56,517.25

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Solution

The fourth proportional to 135,421.09, 203,150.55 and 56,517.25 is: 84,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,421.09 : 203,150.55 = 56,517.25 : x
  2. Step 2: Convert to fraction form
    135,421.09/203,150.55 = 56,517.25/x
  3. Step 3: Cross multiply
    135,421.09x = 203,150.55 × 56,517.25
  4. Step 4: Simplify right side
    135,421.09x = 11,481,510,421.99
  5. Step 5: Solve for x
    x = 11,481,510,421.99/135,421.09
  6. Step 6: Final answer
    x = 84,783.77

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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.