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Finding the Fourth Proportional to 119,323.74, 178,832.52 and 100,821.72

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Solution

The fourth proportional to 119,323.74, 178,832.52 and 100,821.72 is: 151,103.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,323.74 : 178,832.52 = 100,821.72 : x
  2. Step 2: Convert to fraction form
    119,323.74/178,832.52 = 100,821.72/x
  3. Step 3: Cross multiply
    119,323.74x = 178,832.52 × 100,821.72
  4. Step 4: Simplify right side
    119,323.74x = 18,030,202,258.33
  5. Step 5: Solve for x
    x = 18,030,202,258.33/119,323.74
  6. Step 6: Final answer
    x = 151,103.23

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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.