Home / 146,742.75-220,145.70-45,538.80

Finding the Fourth Proportional to 146,742.75, 220,145.70 and 45,538.80

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Solution

The fourth proportional to 146,742.75, 220,145.70 and 45,538.80 is: 68,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,742.75 : 220,145.70 = 45,538.80 : x
  2. Step 2: Convert to fraction form
    146,742.75/220,145.70 = 45,538.80/x
  3. Step 3: Cross multiply
    146,742.75x = 220,145.70 × 45,538.80
  4. Step 4: Simplify right side
    146,742.75x = 10,025,171,003.16
  5. Step 5: Solve for x
    x = 10,025,171,003.16/146,742.75
  6. Step 6: Final answer
    x = 68,318.00

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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.