Home / 199,431.72-299,060.28-74,685.24

Finding the Fourth Proportional to 199,431.72, 299,060.28 and 74,685.24

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Solution

The fourth proportional to 199,431.72, 299,060.28 and 74,685.24 is: 111,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,431.72 : 299,060.28 = 74,685.24 : x
  2. Step 2: Convert to fraction form
    199,431.72/299,060.28 = 74,685.24/x
  3. Step 3: Cross multiply
    199,431.72x = 299,060.28 × 74,685.24
  4. Step 4: Simplify right side
    199,431.72x = 22,335,388,786.27
  5. Step 5: Solve for x
    x = 22,335,388,786.27/199,431.72
  6. Step 6: Final answer
    x = 111,995.17

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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.