Home / 100,760.81-151,016.67-50,855.22

Finding the Fourth Proportional to 100,760.81, 151,016.67 and 50,855.22

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Solution

The fourth proportional to 100,760.81, 151,016.67 and 50,855.22 is: 76,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,760.81 : 151,016.67 = 50,855.22 : x
  2. Step 2: Convert to fraction form
    100,760.81/151,016.67 = 50,855.22/x
  3. Step 3: Cross multiply
    100,760.81x = 151,016.67 × 50,855.22
  4. Step 4: Simplify right side
    100,760.81x = 7,679,985,976.52
  5. Step 5: Solve for x
    x = 7,679,985,976.52/100,760.81
  6. Step 6: Final answer
    x = 76,219.97

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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.