Home / 135,576.34-203,420.25-59,635.78

Finding the Fourth Proportional to 135,576.34, 203,420.25 and 59,635.78

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Solution

The fourth proportional to 135,576.34, 203,420.25 and 59,635.78 is: 89,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,576.34 : 203,420.25 = 59,635.78 : x
  2. Step 2: Convert to fraction form
    135,576.34/203,420.25 = 59,635.78/x
  3. Step 3: Cross multiply
    135,576.34x = 203,420.25 × 59,635.78
  4. Step 4: Simplify right side
    135,576.34x = 12,131,125,276.55
  5. Step 5: Solve for x
    x = 12,131,125,276.55/135,576.34
  6. Step 6: Final answer
    x = 89,478.19

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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.