Home / 203,938.52-305,951.56-85,541.62

Finding the Fourth Proportional to 203,938.52, 305,951.56 and 85,541.62

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Solution

The fourth proportional to 203,938.52, 305,951.56 and 85,541.62 is: 128,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,938.52 : 305,951.56 = 85,541.62 : x
  2. Step 2: Convert to fraction form
    203,938.52/305,951.56 = 85,541.62/x
  3. Step 3: Cross multiply
    203,938.52x = 305,951.56 × 85,541.62
  4. Step 4: Simplify right side
    203,938.52x = 26,171,592,083.93
  5. Step 5: Solve for x
    x = 26,171,592,083.93/203,938.52
  6. Step 6: Final answer
    x = 128,330.79

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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.