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Finding the Fourth Proportional to 146,777.60, 220,166.40 and 76,640.60

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Solution

The fourth proportional to 146,777.60, 220,166.40 and 76,640.60 is: 114,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,777.60 : 220,166.40 = 76,640.60 : x
  2. Step 2: Convert to fraction form
    146,777.60/220,166.40 = 76,640.60/x
  3. Step 3: Cross multiply
    146,777.60x = 220,166.40 × 76,640.60
  4. Step 4: Simplify right side
    146,777.60x = 16,873,684,995.84
  5. Step 5: Solve for x
    x = 16,873,684,995.84/146,777.60
  6. Step 6: Final answer
    x = 114,960.90

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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.