Home / 100,678.14-151,014.78-25,796.88

Finding the Fourth Proportional to 100,678.14, 151,014.78 and 25,796.88

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Solution

The fourth proportional to 100,678.14, 151,014.78 and 25,796.88 is: 38,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,678.14 : 151,014.78 = 25,796.88 : x
  2. Step 2: Convert to fraction form
    100,678.14/151,014.78 = 25,796.88/x
  3. Step 3: Cross multiply
    100,678.14x = 151,014.78 × 25,796.88
  4. Step 4: Simplify right side
    100,678.14x = 3,895,710,157.89
  5. Step 5: Solve for x
    x = 3,895,710,157.89/100,678.14
  6. Step 6: Final answer
    x = 38,694.70

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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.