Home / 199,820.21-275,748.63-109,174.22

Finding the Fourth Proportional to 199,820.21, 275,748.63 and 109,174.22

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Solution

The fourth proportional to 199,820.21, 275,748.63 and 109,174.22 is: 150,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,820.21 : 275,748.63 = 109,174.22 : x
  2. Step 2: Convert to fraction form
    199,820.21/275,748.63 = 109,174.22/x
  3. Step 3: Cross multiply
    199,820.21x = 275,748.63 × 109,174.22
  4. Step 4: Simplify right side
    199,820.21x = 30,104,641,876.29
  5. Step 5: Solve for x
    x = 30,104,641,876.29/199,820.21
  6. Step 6: Final answer
    x = 150,658.64

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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.