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Finding the Fourth Proportional to 179,120.70, 268,647.64 and 72,476.71

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Solution

The fourth proportional to 179,120.70, 268,647.64 and 72,476.71 is: 108,701.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,120.70 : 268,647.64 = 72,476.71 : x
  2. Step 2: Convert to fraction form
    179,120.70/268,647.64 = 72,476.71/x
  3. Step 3: Cross multiply
    179,120.70x = 268,647.64 × 72,476.71
  4. Step 4: Simplify right side
    179,120.70x = 19,470,696,243.65
  5. Step 5: Solve for x
    x = 19,470,696,243.65/179,120.70
  6. Step 6: Final answer
    x = 108,701.54

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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.