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Finding the Fourth Proportional to 134,400.78, 185,411.03 and 80,592.48

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Solution

The fourth proportional to 134,400.78, 185,411.03 and 80,592.48 is: 111,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,400.78 : 185,411.03 = 80,592.48 : x
  2. Step 2: Convert to fraction form
    134,400.78/185,411.03 = 80,592.48/x
  3. Step 3: Cross multiply
    134,400.78x = 185,411.03 × 80,592.48
  4. Step 4: Simplify right side
    134,400.78x = 14,942,734,324.09
  5. Step 5: Solve for x
    x = 14,942,734,324.09/134,400.78
  6. Step 6: Final answer
    x = 111,180.41

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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.