Home / 135,828.72-203,822.40-56,936.88

Finding the Fourth Proportional to 135,828.72, 203,822.40 and 56,936.88

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Solution

The fourth proportional to 135,828.72, 203,822.40 and 56,936.88 is: 85,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,828.72 : 203,822.40 = 56,936.88 : x
  2. Step 2: Convert to fraction form
    135,828.72/203,822.40 = 56,936.88/x
  3. Step 3: Cross multiply
    135,828.72x = 203,822.40 × 56,936.88
  4. Step 4: Simplify right side
    135,828.72x = 11,605,011,530.11
  5. Step 5: Solve for x
    x = 11,605,011,530.11/135,828.72
  6. Step 6: Final answer
    x = 85,438.57

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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.