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Finding the Fourth Proportional to 148,545.80, 222,720.30 and 82,017.80

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Solution

The fourth proportional to 148,545.80, 222,720.30 and 82,017.80 is: 122,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,545.80 : 222,720.30 = 82,017.80 : x
  2. Step 2: Convert to fraction form
    148,545.80/222,720.30 = 82,017.80/x
  3. Step 3: Cross multiply
    148,545.80x = 222,720.30 × 82,017.80
  4. Step 4: Simplify right side
    148,545.80x = 18,267,029,021.34
  5. Step 5: Solve for x
    x = 18,267,029,021.34/148,545.80
  6. Step 6: Final answer
    x = 122,972.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.