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Finding the Fourth Proportional to 146,728.60, 220,190.10 and 83,548.60

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Solution

The fourth proportional to 146,728.60, 220,190.10 and 83,548.60 is: 125,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,728.60 : 220,190.10 = 83,548.60 : x
  2. Step 2: Convert to fraction form
    146,728.60/220,190.10 = 83,548.60/x
  3. Step 3: Cross multiply
    146,728.60x = 220,190.10 × 83,548.60
  4. Step 4: Simplify right side
    146,728.60x = 18,396,574,588.86
  5. Step 5: Solve for x
    x = 18,396,574,588.86/146,728.60
  6. Step 6: Final answer
    x = 125,378.25

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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.