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Finding the Fourth Proportional to 134,855.26, 186,098.54 and 77,493.89

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Solution

The fourth proportional to 134,855.26, 186,098.54 and 77,493.89 is: 106,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,855.26 : 186,098.54 = 77,493.89 : x
  2. Step 2: Convert to fraction form
    134,855.26/186,098.54 = 77,493.89/x
  3. Step 3: Cross multiply
    134,855.26x = 186,098.54 × 77,493.89
  4. Step 4: Simplify right side
    134,855.26x = 14,421,499,787.92
  5. Step 5: Solve for x
    x = 14,421,499,787.92/134,855.26
  6. Step 6: Final answer
    x = 106,940.58

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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.