Home / 161,129.64-222,352.68-89,514.18

Finding the Fourth Proportional to 161,129.64, 222,352.68 and 89,514.18

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Solution

The fourth proportional to 161,129.64, 222,352.68 and 89,514.18 is: 123,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,129.64 : 222,352.68 = 89,514.18 : x
  2. Step 2: Convert to fraction form
    161,129.64/222,352.68 = 89,514.18/x
  3. Step 3: Cross multiply
    161,129.64x = 222,352.68 × 89,514.18
  4. Step 4: Simplify right side
    161,129.64x = 19,903,717,821.00
  5. Step 5: Solve for x
    x = 19,903,717,821.00/161,129.64
  6. Step 6: Final answer
    x = 123,526.11

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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.