Home / 165,512-228,407.64-90,061.04

Finding the Fourth Proportional to 165,512, 228,407.64 and 90,061.04

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Solution

The fourth proportional to 165,512, 228,407.64 and 90,061.04 is: 124,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,512 : 228,407.64 = 90,061.04 : x
  2. Step 2: Convert to fraction form
    165,512/228,407.64 = 90,061.04/x
  3. Step 3: Cross multiply
    165,512x = 228,407.64 × 90,061.04
  4. Step 4: Simplify right side
    165,512x = 20,570,629,602.35
  5. Step 5: Solve for x
    x = 20,570,629,602.35/165,512
  6. Step 6: Final answer
    x = 124,284.82

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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.