Home / 199,359.51-275,122.74-108,720.42

Finding the Fourth Proportional to 199,359.51, 275,122.74 and 108,720.42

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Solution

The fourth proportional to 199,359.51, 275,122.74 and 108,720.42 is: 150,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,359.51 : 275,122.74 = 108,720.42 : x
  2. Step 2: Convert to fraction form
    199,359.51/275,122.74 = 108,720.42/x
  3. Step 3: Cross multiply
    199,359.51x = 275,122.74 × 108,720.42
  4. Step 4: Simplify right side
    199,359.51x = 29,911,459,844.35
  5. Step 5: Solve for x
    x = 29,911,459,844.35/199,359.51
  6. Step 6: Final answer
    x = 150,037.79

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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.