Home / 161,402.52-222,729.30-89,780.16

Finding the Fourth Proportional to 161,402.52, 222,729.30 and 89,780.16

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Solution

The fourth proportional to 161,402.52, 222,729.30 and 89,780.16 is: 123,893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,402.52 : 222,729.30 = 89,780.16 : x
  2. Step 2: Convert to fraction form
    161,402.52/222,729.30 = 89,780.16/x
  3. Step 3: Cross multiply
    161,402.52x = 222,729.30 × 89,780.16
  4. Step 4: Simplify right side
    161,402.52x = 19,996,672,190.69
  5. Step 5: Solve for x
    x = 19,996,672,190.69/161,402.52
  6. Step 6: Final answer
    x = 123,893.18

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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.