Home / 102,768.54-141,817.60-57,446.61

Finding the Fourth Proportional to 102,768.54, 141,817.60 and 57,446.61

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Solution

The fourth proportional to 102,768.54, 141,817.60 and 57,446.61 is: 79,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,768.54 : 141,817.60 = 57,446.61 : x
  2. Step 2: Convert to fraction form
    102,768.54/141,817.60 = 57,446.61/x
  3. Step 3: Cross multiply
    102,768.54x = 141,817.60 × 57,446.61
  4. Step 4: Simplify right side
    102,768.54x = 8,146,940,358.34
  5. Step 5: Solve for x
    x = 8,146,940,358.34/102,768.54
  6. Step 6: Final answer
    x = 79,274.65

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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.