Home / 199,664.64-275,537.80-109,021.40

Finding the Fourth Proportional to 199,664.64, 275,537.80 and 109,021.40

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Solution

The fourth proportional to 199,664.64, 275,537.80 and 109,021.40 is: 150,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,664.64 : 275,537.80 = 109,021.40 : x
  2. Step 2: Convert to fraction form
    199,664.64/275,537.80 = 109,021.40/x
  3. Step 3: Cross multiply
    199,664.64x = 275,537.80 × 109,021.40
  4. Step 4: Simplify right side
    199,664.64x = 30,039,516,708.92
  5. Step 5: Solve for x
    x = 30,039,516,708.92/199,664.64
  6. Step 6: Final answer
    x = 150,449.86

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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.