Home / 161,203.70-222,312.38-100,755.02

Finding the Fourth Proportional to 161,203.70, 222,312.38 and 100,755.02

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Solution

The fourth proportional to 161,203.70, 222,312.38 and 100,755.02 is: 138,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,203.70 : 222,312.38 = 100,755.02 : x
  2. Step 2: Convert to fraction form
    161,203.70/222,312.38 = 100,755.02/x
  3. Step 3: Cross multiply
    161,203.70x = 222,312.38 × 100,755.02
  4. Step 4: Simplify right side
    161,203.70x = 22,399,088,293.15
  5. Step 5: Solve for x
    x = 22,399,088,293.15/161,203.70
  6. Step 6: Final answer
    x = 138,948.97

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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.