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Finding the Fourth Proportional to 178,751.64, 268,162.02 and 67,935

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Solution

The fourth proportional to 178,751.64, 268,162.02 and 67,935 is: 101,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,751.64 : 268,162.02 = 67,935 : x
  2. Step 2: Convert to fraction form
    178,751.64/268,162.02 = 67,935/x
  3. Step 3: Cross multiply
    178,751.64x = 268,162.02 × 67,935
  4. Step 4: Simplify right side
    178,751.64x = 18,217,586,828.70
  5. Step 5: Solve for x
    x = 18,217,586,828.70/178,751.64
  6. Step 6: Final answer
    x = 101,915.63

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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.