Home / 165,702.79-228,669.77-90,251.29

Finding the Fourth Proportional to 165,702.79, 228,669.77 and 90,251.29

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Solution

The fourth proportional to 165,702.79, 228,669.77 and 90,251.29 is: 124,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,702.79 : 228,669.77 = 90,251.29 : x
  2. Step 2: Convert to fraction form
    165,702.79/228,669.77 = 90,251.29/x
  3. Step 3: Cross multiply
    165,702.79x = 228,669.77 × 90,251.29
  4. Step 4: Simplify right side
    165,702.79x = 20,637,740,131.90
  5. Step 5: Solve for x
    x = 20,637,740,131.90/165,702.79
  6. Step 6: Final answer
    x = 124,546.73

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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.