Home / 199,820.98-275,749.74-109,175

Finding the Fourth Proportional to 199,820.98, 275,749.74 and 109,175

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Solution

The fourth proportional to 199,820.98, 275,749.74 and 109,175 is: 150,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,820.98 : 275,749.74 = 109,175 : x
  2. Step 2: Convert to fraction form
    199,820.98/275,749.74 = 109,175/x
  3. Step 3: Cross multiply
    199,820.98x = 275,749.74 × 109,175
  4. Step 4: Simplify right side
    199,820.98x = 30,104,977,864.50
  5. Step 5: Solve for x
    x = 30,104,977,864.50/199,820.98
  6. Step 6: Final answer
    x = 150,659.74

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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.