Home / 161,090.35-222,328.94-115,917.86

Finding the Fourth Proportional to 161,090.35, 222,328.94 and 115,917.86

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Solution

The fourth proportional to 161,090.35, 222,328.94 and 115,917.86 is: 159,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,090.35 : 222,328.94 = 115,917.86 : x
  2. Step 2: Convert to fraction form
    161,090.35/222,328.94 = 115,917.86/x
  3. Step 3: Cross multiply
    161,090.35x = 222,328.94 × 115,917.86
  4. Step 4: Simplify right side
    161,090.35x = 25,771,894,917.10
  5. Step 5: Solve for x
    x = 25,771,894,917.10/161,090.35
  6. Step 6: Final answer
    x = 159,984.10

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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.