Home / 199,421.38-275,202.36-108,779.32

Finding the Fourth Proportional to 199,421.38, 275,202.36 and 108,779.32

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Solution

The fourth proportional to 199,421.38, 275,202.36 and 108,779.32 is: 150,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.38 : 275,202.36 = 108,779.32 : x
  2. Step 2: Convert to fraction form
    199,421.38/275,202.36 = 108,779.32/x
  3. Step 3: Cross multiply
    199,421.38x = 275,202.36 × 108,779.32
  4. Step 4: Simplify right side
    199,421.38x = 29,936,325,583.20
  5. Step 5: Solve for x
    x = 29,936,325,583.20/199,421.38
  6. Step 6: Final answer
    x = 150,115.93

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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.