Home / 137,414.72-189,647.60-76,995.20

Finding the Fourth Proportional to 137,414.72, 189,647.60 and 76,995.20

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Solution

The fourth proportional to 137,414.72, 189,647.60 and 76,995.20 is: 106,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,414.72 : 189,647.60 = 76,995.20 : x
  2. Step 2: Convert to fraction form
    137,414.72/189,647.60 = 76,995.20/x
  3. Step 3: Cross multiply
    137,414.72x = 189,647.60 × 76,995.20
  4. Step 4: Simplify right side
    137,414.72x = 14,601,954,891.52
  5. Step 5: Solve for x
    x = 14,601,954,891.52/137,414.72
  6. Step 6: Final answer
    x = 106,261.94

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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.