Home / 134,621.54-185,769.37-74,188.80

Finding the Fourth Proportional to 134,621.54, 185,769.37 and 74,188.80

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Solution

The fourth proportional to 134,621.54, 185,769.37 and 74,188.80 is: 102,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,621.54 : 185,769.37 = 74,188.80 : x
  2. Step 2: Convert to fraction form
    134,621.54/185,769.37 = 74,188.80/x
  3. Step 3: Cross multiply
    134,621.54x = 185,769.37 × 74,188.80
  4. Step 4: Simplify right side
    134,621.54x = 13,782,006,451.58
  5. Step 5: Solve for x
    x = 13,782,006,451.58/134,621.54
  6. Step 6: Final answer
    x = 102,375.94

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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.