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Finding the Fourth Proportional to 159,325.34, 219,843.66 and 91,329.32

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Solution

The fourth proportional to 159,325.34, 219,843.66 and 91,329.32 is: 126,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,325.34 : 219,843.66 = 91,329.32 : x
  2. Step 2: Convert to fraction form
    159,325.34/219,843.66 = 91,329.32/x
  3. Step 3: Cross multiply
    159,325.34x = 219,843.66 × 91,329.32
  4. Step 4: Simplify right side
    159,325.34x = 20,078,171,974.11
  5. Step 5: Solve for x
    x = 20,078,171,974.11/159,325.34
  6. Step 6: Final answer
    x = 126,019.95

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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.