Home / 154,796.18-213,420.96-100,251.97

Finding the Fourth Proportional to 154,796.18, 213,420.96 and 100,251.97

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Solution

The fourth proportional to 154,796.18, 213,420.96 and 100,251.97 is: 138,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,796.18 : 213,420.96 = 100,251.97 : x
  2. Step 2: Convert to fraction form
    154,796.18/213,420.96 = 100,251.97/x
  3. Step 3: Cross multiply
    154,796.18x = 213,420.96 × 100,251.97
  4. Step 4: Simplify right side
    154,796.18x = 21,395,870,933.55
  5. Step 5: Solve for x
    x = 21,395,870,933.55/154,796.18
  6. Step 6: Final answer
    x = 138,219.64

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1.5x scale

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.