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Finding the Fourth Proportional to 179,388.58, 268,951.10 and 85,959.94

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Solution

The fourth proportional to 179,388.58, 268,951.10 and 85,959.94 is: 128,876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,388.58 : 268,951.10 = 85,959.94 : x
  2. Step 2: Convert to fraction form
    179,388.58/268,951.10 = 85,959.94/x
  3. Step 3: Cross multiply
    179,388.58x = 268,951.10 × 85,959.94
  4. Step 4: Simplify right side
    179,388.58x = 23,119,020,418.93
  5. Step 5: Solve for x
    x = 23,119,020,418.93/179,388.58
  6. Step 6: Final answer
    x = 128,876.77

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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.