Home / 199,678.40-275,567.44-109,042.80

Finding the Fourth Proportional to 199,678.40, 275,567.44 and 109,042.80

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Solution

The fourth proportional to 199,678.40, 275,567.44 and 109,042.80 is: 150,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,678.40 : 275,567.44 = 109,042.80 : x
  2. Step 2: Convert to fraction form
    199,678.40/275,567.44 = 109,042.80/x
  3. Step 3: Cross multiply
    199,678.40x = 275,567.44 × 109,042.80
  4. Step 4: Simplify right side
    199,678.40x = 30,048,645,246.43
  5. Step 5: Solve for x
    x = 30,048,645,246.43/199,678.40
  6. Step 6: Final answer
    x = 150,485.21

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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.