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Finding the Fourth Proportional to 79,234.52, 118,583.84 and 77,102.18

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Solution

The fourth proportional to 79,234.52, 118,583.84 and 77,102.18 is: 115,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,234.52 : 118,583.84 = 77,102.18 : x
  2. Step 2: Convert to fraction form
    79,234.52/118,583.84 = 77,102.18/x
  3. Step 3: Cross multiply
    79,234.52x = 118,583.84 × 77,102.18
  4. Step 4: Simplify right side
    79,234.52x = 9,143,072,576.77
  5. Step 5: Solve for x
    x = 9,143,072,576.77/79,234.52
  6. Step 6: Final answer
    x = 115,392.54

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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.