Home / 199,421.88-275,203.05-108,779.82

Finding the Fourth Proportional to 199,421.88, 275,203.05 and 108,779.82

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Solution

The fourth proportional to 199,421.88, 275,203.05 and 108,779.82 is: 150,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.88 : 275,203.05 = 108,779.82 : x
  2. Step 2: Convert to fraction form
    199,421.88/275,203.05 = 108,779.82/x
  3. Step 3: Cross multiply
    199,421.88x = 275,203.05 × 108,779.82
  4. Step 4: Simplify right side
    199,421.88x = 29,936,538,242.45
  5. Step 5: Solve for x
    x = 29,936,538,242.45/199,421.88
  6. Step 6: Final answer
    x = 150,116.62

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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.