Home / 199,915.84-275,876.32-109,271.04

Finding the Fourth Proportional to 199,915.84, 275,876.32 and 109,271.04

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Solution

The fourth proportional to 199,915.84, 275,876.32 and 109,271.04 is: 150,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,915.84 : 275,876.32 = 109,271.04 : x
  2. Step 2: Convert to fraction form
    199,915.84/275,876.32 = 109,271.04/x
  3. Step 3: Cross multiply
    199,915.84x = 275,876.32 × 109,271.04
  4. Step 4: Simplify right side
    199,915.84x = 30,145,292,397.77
  5. Step 5: Solve for x
    x = 30,145,292,397.77/199,915.84
  6. Step 6: Final answer
    x = 150,789.91

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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.