Home / 135,474.20-203,112.84-56,611

Finding the Fourth Proportional to 135,474.20, 203,112.84 and 56,611

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Solution

The fourth proportional to 135,474.20, 203,112.84 and 56,611 is: 84,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,474.20 : 203,112.84 = 56,611 : x
  2. Step 2: Convert to fraction form
    135,474.20/203,112.84 = 56,611/x
  3. Step 3: Cross multiply
    135,474.20x = 203,112.84 × 56,611
  4. Step 4: Simplify right side
    135,474.20x = 11,498,420,985.24
  5. Step 5: Solve for x
    x = 11,498,420,985.24/135,474.20
  6. Step 6: Final answer
    x = 84,875.36

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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.