Home / 117,137.43-161,588.79-71,826.03

Finding the Fourth Proportional to 117,137.43, 161,588.79 and 71,826.03

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Solution

The fourth proportional to 117,137.43, 161,588.79 and 71,826.03 is: 99,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,137.43 : 161,588.79 = 71,826.03 : x
  2. Step 2: Convert to fraction form
    117,137.43/161,588.79 = 71,826.03/x
  3. Step 3: Cross multiply
    117,137.43x = 161,588.79 × 71,826.03
  4. Step 4: Simplify right side
    117,137.43x = 11,606,281,278.20
  5. Step 5: Solve for x
    x = 11,606,281,278.20/117,137.43
  6. Step 6: Final answer
    x = 99,082.60

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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.