Home / 67,121.34-100,681.20-17,201.04

Finding the Fourth Proportional to 67,121.34, 100,681.20 and 17,201.04

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Solution

The fourth proportional to 67,121.34, 100,681.20 and 17,201.04 is: 25,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.34 : 100,681.20 = 17,201.04 : x
  2. Step 2: Convert to fraction form
    67,121.34/100,681.20 = 17,201.04/x
  3. Step 3: Cross multiply
    67,121.34x = 100,681.20 × 17,201.04
  4. Step 4: Simplify right side
    67,121.34x = 1,731,821,348.45
  5. Step 5: Solve for x
    x = 1,731,821,348.45/67,121.34
  6. Step 6: Final answer
    x = 25,801.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.