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Finding the Fourth Proportional to 159,062.73, 219,497.41 and 87,442.73

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Solution

The fourth proportional to 159,062.73, 219,497.41 and 87,442.73 is: 120,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,062.73 : 219,497.41 = 87,442.73 : x
  2. Step 2: Convert to fraction form
    159,062.73/219,497.41 = 87,442.73/x
  3. Step 3: Cross multiply
    159,062.73x = 219,497.41 × 87,442.73
  4. Step 4: Simplify right side
    159,062.73x = 19,193,452,758.33
  5. Step 5: Solve for x
    x = 19,193,452,758.33/159,062.73
  6. Step 6: Final answer
    x = 120,665.93

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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.