Home / 113,453.36-170,026.68-81,917.36

Finding the Fourth Proportional to 113,453.36, 170,026.68 and 81,917.36

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Solution

The fourth proportional to 113,453.36, 170,026.68 and 81,917.36 is: 122,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,453.36 : 170,026.68 = 81,917.36 : x
  2. Step 2: Convert to fraction form
    113,453.36/170,026.68 = 81,917.36/x
  3. Step 3: Cross multiply
    113,453.36x = 170,026.68 × 81,917.36
  4. Step 4: Simplify right side
    113,453.36x = 13,928,136,755.16
  5. Step 5: Solve for x
    x = 13,928,136,755.16/113,453.36
  6. Step 6: Final answer
    x = 122,765.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.