Home / 165,724.48-228,700.64-90,272.96

Finding the Fourth Proportional to 165,724.48, 228,700.64 and 90,272.96

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Solution

The fourth proportional to 165,724.48, 228,700.64 and 90,272.96 is: 124,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,724.48 : 228,700.64 = 90,272.96 : x
  2. Step 2: Convert to fraction form
    165,724.48/228,700.64 = 90,272.96/x
  3. Step 3: Cross multiply
    165,724.48x = 228,700.64 × 90,272.96
  4. Step 4: Simplify right side
    165,724.48x = 20,645,483,726.69
  5. Step 5: Solve for x
    x = 20,645,483,726.69/165,724.48
  6. Step 6: Final answer
    x = 124,577.15

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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.