Home / 148,123.85-222,185.77-81,529.70

Finding the Fourth Proportional to 148,123.85, 222,185.77 and 81,529.70

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Solution

The fourth proportional to 148,123.85, 222,185.77 and 81,529.70 is: 122,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,123.85 : 222,185.77 = 81,529.70 : x
  2. Step 2: Convert to fraction form
    148,123.85/222,185.77 = 81,529.70/x
  3. Step 3: Cross multiply
    148,123.85x = 222,185.77 × 81,529.70
  4. Step 4: Simplify right side
    148,123.85x = 18,114,737,857.62
  5. Step 5: Solve for x
    x = 18,114,737,857.62/148,123.85
  6. Step 6: Final answer
    x = 122,294.54

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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.