Home / 148,234.60-222,351.90-81,640.45

Finding the Fourth Proportional to 148,234.60, 222,351.90 and 81,640.45

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Solution

The fourth proportional to 148,234.60, 222,351.90 and 81,640.45 is: 122,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,234.60 : 222,351.90 = 81,640.45 : x
  2. Step 2: Convert to fraction form
    148,234.60/222,351.90 = 81,640.45/x
  3. Step 3: Cross multiply
    148,234.60x = 222,351.90 × 81,640.45
  4. Step 4: Simplify right side
    148,234.60x = 18,152,909,174.36
  5. Step 5: Solve for x
    x = 18,152,909,174.36/148,234.60
  6. Step 6: Final answer
    x = 122,460.68

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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.