Home / 203,153.62-280,146.45-135,083.11

Finding the Fourth Proportional to 203,153.62, 280,146.45 and 135,083.11

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Solution

The fourth proportional to 203,153.62, 280,146.45 and 135,083.11 is: 186,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,153.62 : 280,146.45 = 135,083.11 : x
  2. Step 2: Convert to fraction form
    203,153.62/280,146.45 = 135,083.11/x
  3. Step 3: Cross multiply
    203,153.62x = 280,146.45 × 135,083.11
  4. Step 4: Simplify right side
    203,153.62x = 37,843,053,721.46
  5. Step 5: Solve for x
    x = 37,843,053,721.46/203,153.62
  6. Step 6: Final answer
    x = 186,278.02

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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.