Home / 137,837.20-190,200.54-77,414.44

Finding the Fourth Proportional to 137,837.20, 190,200.54 and 77,414.44

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Solution

The fourth proportional to 137,837.20, 190,200.54 and 77,414.44 is: 106,823.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,837.20 : 190,200.54 = 77,414.44 : x
  2. Step 2: Convert to fraction form
    137,837.20/190,200.54 = 77,414.44/x
  3. Step 3: Cross multiply
    137,837.20x = 190,200.54 × 77,414.44
  4. Step 4: Simplify right side
    137,837.20x = 14,724,268,291.80
  5. Step 5: Solve for x
    x = 14,724,268,291.80/137,837.20
  6. Step 6: Final answer
    x = 106,823.62

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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.