Home / 165,734.78-228,712.82-90,283.28

Finding the Fourth Proportional to 165,734.78, 228,712.82 and 90,283.28

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Solution

The fourth proportional to 165,734.78, 228,712.82 and 90,283.28 is: 124,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,734.78 : 228,712.82 = 90,283.28 : x
  2. Step 2: Convert to fraction form
    165,734.78/228,712.82 = 90,283.28/x
  3. Step 3: Cross multiply
    165,734.78x = 228,712.82 × 90,283.28
  4. Step 4: Simplify right side
    165,734.78x = 20,648,943,567.65
  5. Step 5: Solve for x
    x = 20,648,943,567.65/165,734.78
  6. Step 6: Final answer
    x = 124,590.29

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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.