Home / 117,333.56-161,908.32-72,013.44

Finding the Fourth Proportional to 117,333.56, 161,908.32 and 72,013.44

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Solution

The fourth proportional to 117,333.56, 161,908.32 and 72,013.44 is: 99,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,333.56 : 161,908.32 = 72,013.44 : x
  2. Step 2: Convert to fraction form
    117,333.56/161,908.32 = 72,013.44/x
  3. Step 3: Cross multiply
    117,333.56x = 161,908.32 × 72,013.44
  4. Step 4: Simplify right side
    117,333.56x = 11,659,575,087.82
  5. Step 5: Solve for x
    x = 11,659,575,087.82/117,333.56
  6. Step 6: Final answer
    x = 99,371.19

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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.