Home / 165,724.13-228,699.29-90,272.63

Finding the Fourth Proportional to 165,724.13, 228,699.29 and 90,272.63

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Solution

The fourth proportional to 165,724.13, 228,699.29 and 90,272.63 is: 124,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,724.13 : 228,699.29 = 90,272.63 : x
  2. Step 2: Convert to fraction form
    165,724.13/228,699.29 = 90,272.63/x
  3. Step 3: Cross multiply
    165,724.13x = 228,699.29 × 90,272.63
  4. Step 4: Simplify right side
    165,724.13x = 20,645,285,469.62
  5. Step 5: Solve for x
    x = 20,645,285,469.62/165,724.13
  6. Step 6: Final answer
    x = 124,576.22

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1.5x scale

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.