Home / 161,300.78-222,589.26-88,703.06

Finding the Fourth Proportional to 161,300.78, 222,589.26 and 88,703.06

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Solution

The fourth proportional to 161,300.78, 222,589.26 and 88,703.06 is: 122,407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,300.78 : 222,589.26 = 88,703.06 : x
  2. Step 2: Convert to fraction form
    161,300.78/222,589.26 = 88,703.06/x
  3. Step 3: Cross multiply
    161,300.78x = 222,589.26 × 88,703.06
  4. Step 4: Simplify right side
    161,300.78x = 19,744,348,485.14
  5. Step 5: Solve for x
    x = 19,744,348,485.14/161,300.78
  6. Step 6: Final answer
    x = 122,407.02

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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.