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Finding the Fourth Proportional to 148,471.60, 222,707.40 and 69,739.60

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Solution

The fourth proportional to 148,471.60, 222,707.40 and 69,739.60 is: 104,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,471.60 : 222,707.40 = 69,739.60 : x
  2. Step 2: Convert to fraction form
    148,471.60/222,707.40 = 69,739.60/x
  3. Step 3: Cross multiply
    148,471.60x = 222,707.40 × 69,739.60
  4. Step 4: Simplify right side
    148,471.60x = 15,531,524,993.04
  5. Step 5: Solve for x
    x = 15,531,524,993.04/148,471.60
  6. Step 6: Final answer
    x = 104,609.40

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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.