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Finding the Fourth Proportional to 165,612, 228,545.10 and 90,161.04

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Solution

The fourth proportional to 165,612, 228,545.10 and 90,161.04 is: 124,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612 : 228,545.10 = 90,161.04 : x
  2. Step 2: Convert to fraction form
    165,612/228,545.10 = 90,161.04/x
  3. Step 3: Cross multiply
    165,612x = 228,545.10 × 90,161.04
  4. Step 4: Simplify right side
    165,612x = 20,605,863,902.90
  5. Step 5: Solve for x
    x = 20,605,863,902.90/165,612
  6. Step 6: Final answer
    x = 124,422.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.