Home / 203,176.11-280,385.13-122,588.06

Finding the Fourth Proportional to 203,176.11, 280,385.13 and 122,588.06

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Solution

The fourth proportional to 203,176.11, 280,385.13 and 122,588.06 is: 169,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,176.11 : 280,385.13 = 122,588.06 : x
  2. Step 2: Convert to fraction form
    203,176.11/280,385.13 = 122,588.06/x
  3. Step 3: Cross multiply
    203,176.11x = 280,385.13 × 122,588.06
  4. Step 4: Simplify right side
    203,176.11x = 34,371,869,139.55
  5. Step 5: Solve for x
    x = 34,371,869,139.55/203,176.11
  6. Step 6: Final answer
    x = 169,172.79

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1.5x scale

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.