Home / 154,753.35-213,481.02-101,069.79

Finding the Fourth Proportional to 154,753.35, 213,481.02 and 101,069.79

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Solution

The fourth proportional to 154,753.35, 213,481.02 and 101,069.79 is: 139,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,753.35 : 213,481.02 = 101,069.79 : x
  2. Step 2: Convert to fraction form
    154,753.35/213,481.02 = 101,069.79/x
  3. Step 3: Cross multiply
    154,753.35x = 213,481.02 × 101,069.79
  4. Step 4: Simplify right side
    154,753.35x = 21,576,481,860.39
  5. Step 5: Solve for x
    x = 21,576,481,860.39/154,753.35
  6. Step 6: Final answer
    x = 139,424.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.