Home / 165,196.40-227,959.80-89,743.28

Finding the Fourth Proportional to 165,196.40, 227,959.80 and 89,743.28

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Solution

The fourth proportional to 165,196.40, 227,959.80 and 89,743.28 is: 123,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,196.40 : 227,959.80 = 89,743.28 : x
  2. Step 2: Convert to fraction form
    165,196.40/227,959.80 = 89,743.28/x
  3. Step 3: Cross multiply
    165,196.40x = 227,959.80 × 89,743.28
  4. Step 4: Simplify right side
    165,196.40x = 20,457,860,160.14
  5. Step 5: Solve for x
    x = 20,457,860,160.14/165,196.40
  6. Step 6: Final answer
    x = 123,839.62

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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.