Home / 161,379.36-222,648.84-115,400.16

Finding the Fourth Proportional to 161,379.36, 222,648.84 and 115,400.16

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Solution

The fourth proportional to 161,379.36, 222,648.84 and 115,400.16 is: 159,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,379.36 : 222,648.84 = 115,400.16 : x
  2. Step 2: Convert to fraction form
    161,379.36/222,648.84 = 115,400.16/x
  3. Step 3: Cross multiply
    161,379.36x = 222,648.84 × 115,400.16
  4. Step 4: Simplify right side
    161,379.36x = 25,693,711,759.81
  5. Step 5: Solve for x
    x = 25,693,711,759.81/161,379.36
  6. Step 6: Final answer
    x = 159,213.12

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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.