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Finding the Fourth Proportional to 148,370.60, 222,512.70 and 81,842.60

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Solution

The fourth proportional to 148,370.60, 222,512.70 and 81,842.60 is: 122,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,370.60 : 222,512.70 = 81,842.60 : x
  2. Step 2: Convert to fraction form
    148,370.60/222,512.70 = 81,842.60/x
  3. Step 3: Cross multiply
    148,370.60x = 222,512.70 × 81,842.60
  4. Step 4: Simplify right side
    148,370.60x = 18,211,017,901.02
  5. Step 5: Solve for x
    x = 18,211,017,901.02/148,370.60
  6. Step 6: Final answer
    x = 122,740.07

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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.