Home / 199,775.05-275,678.50-109,112.96

Finding the Fourth Proportional to 199,775.05, 275,678.50 and 109,112.96

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Solution

The fourth proportional to 199,775.05, 275,678.50 and 109,112.96 is: 150,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,775.05 : 275,678.50 = 109,112.96 : x
  2. Step 2: Convert to fraction form
    199,775.05/275,678.50 = 109,112.96/x
  3. Step 3: Cross multiply
    199,775.05x = 275,678.50 × 109,112.96
  4. Step 4: Simplify right side
    199,775.05x = 30,080,097,143.36
  5. Step 5: Solve for x
    x = 30,080,097,143.36/199,775.05
  6. Step 6: Final answer
    x = 150,569.84

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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.