Home / 132,791.32-183,249.64-72,362.45

Finding the Fourth Proportional to 132,791.32, 183,249.64 and 72,362.45

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Solution

The fourth proportional to 132,791.32, 183,249.64 and 72,362.45 is: 99,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,791.32 : 183,249.64 = 72,362.45 : x
  2. Step 2: Convert to fraction form
    132,791.32/183,249.64 = 72,362.45/x
  3. Step 3: Cross multiply
    132,791.32x = 183,249.64 × 72,362.45
  4. Step 4: Simplify right side
    132,791.32x = 13,260,392,912.02
  5. Step 5: Solve for x
    x = 13,260,392,912.02/132,791.32
  6. Step 6: Final answer
    x = 99,858.88

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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.