Home / 135,772.20-203,386.50-64,764

Finding the Fourth Proportional to 135,772.20, 203,386.50 and 64,764

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Solution

The fourth proportional to 135,772.20, 203,386.50 and 64,764 is: 97,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,772.20 : 203,386.50 = 64,764 : x
  2. Step 2: Convert to fraction form
    135,772.20/203,386.50 = 64,764/x
  3. Step 3: Cross multiply
    135,772.20x = 203,386.50 × 64,764
  4. Step 4: Simplify right side
    135,772.20x = 13,172,123,286
  5. Step 5: Solve for x
    x = 13,172,123,286/135,772.20
  6. Step 6: Final answer
    x = 97,016.35

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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.