Home / 102,772.72-154,196.88-73,421.56

Finding the Fourth Proportional to 102,772.72, 154,196.88 and 73,421.56

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Solution

The fourth proportional to 102,772.72, 154,196.88 and 73,421.56 is: 110,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,772.72 : 154,196.88 = 73,421.56 : x
  2. Step 2: Convert to fraction form
    102,772.72/154,196.88 = 73,421.56/x
  3. Step 3: Cross multiply
    102,772.72x = 154,196.88 × 73,421.56
  4. Step 4: Simplify right side
    102,772.72x = 11,321,375,476.73
  5. Step 5: Solve for x
    x = 11,321,375,476.73/102,772.72
  6. Step 6: Final answer
    x = 110,159.34

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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.