Home / 165,828.85-228,844.03-90,377.35

Finding the Fourth Proportional to 165,828.85, 228,844.03 and 90,377.35

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Solution

The fourth proportional to 165,828.85, 228,844.03 and 90,377.35 is: 124,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,828.85 : 228,844.03 = 90,377.35 : x
  2. Step 2: Convert to fraction form
    165,828.85/228,844.03 = 90,377.35/x
  3. Step 3: Cross multiply
    165,828.85x = 228,844.03 × 90,377.35
  4. Step 4: Simplify right side
    165,828.85x = 20,682,316,994.72
  5. Step 5: Solve for x
    x = 20,682,316,994.72/165,828.85
  6. Step 6: Final answer
    x = 124,720.86

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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.