Home / 117,320.49-161,302.77-104,451.21

Finding the Fourth Proportional to 117,320.49, 161,302.77 and 104,451.21

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Solution

The fourth proportional to 117,320.49, 161,302.77 and 104,451.21 is: 143,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,320.49 : 161,302.77 = 104,451.21 : x
  2. Step 2: Convert to fraction form
    117,320.49/161,302.77 = 104,451.21/x
  3. Step 3: Cross multiply
    117,320.49x = 161,302.77 × 104,451.21
  4. Step 4: Simplify right side
    117,320.49x = 16,848,269,502.85
  5. Step 5: Solve for x
    x = 16,848,269,502.85/117,320.49
  6. Step 6: Final answer
    x = 143,608.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.