Home / 166,015.20-248,725.80-100,981.20

Finding the Fourth Proportional to 166,015.20, 248,725.80 and 100,981.20

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Solution

The fourth proportional to 166,015.20, 248,725.80 and 100,981.20 is: 151,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,015.20 : 248,725.80 = 100,981.20 : x
  2. Step 2: Convert to fraction form
    166,015.20/248,725.80 = 100,981.20/x
  3. Step 3: Cross multiply
    166,015.20x = 248,725.80 × 100,981.20
  4. Step 4: Simplify right side
    166,015.20x = 25,116,629,754.96
  5. Step 5: Solve for x
    x = 25,116,629,754.96/166,015.20
  6. Step 6: Final answer
    x = 151,291.15

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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.