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Finding the Fourth Proportional to 134,876.38, 186,101.62 and 77,504.62

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Solution

The fourth proportional to 134,876.38, 186,101.62 and 77,504.62 is: 106,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,876.38 : 186,101.62 = 77,504.62 : x
  2. Step 2: Convert to fraction form
    134,876.38/186,101.62 = 77,504.62/x
  3. Step 3: Cross multiply
    134,876.38x = 186,101.62 × 77,504.62
  4. Step 4: Simplify right side
    134,876.38x = 14,423,735,339.48
  5. Step 5: Solve for x
    x = 14,423,735,339.48/134,876.38
  6. Step 6: Final answer
    x = 106,940.41

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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.