Home / 211,183.40-316,742.08-69,027.60

Finding the Fourth Proportional to 211,183.40, 316,742.08 and 69,027.60

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Solution

The fourth proportional to 211,183.40, 316,742.08 and 69,027.60 is: 103,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,183.40 : 316,742.08 = 69,027.60 : x
  2. Step 2: Convert to fraction form
    211,183.40/316,742.08 = 69,027.60/x
  3. Step 3: Cross multiply
    211,183.40x = 316,742.08 × 69,027.60
  4. Step 4: Simplify right side
    211,183.40x = 21,863,945,601.41
  5. Step 5: Solve for x
    x = 21,863,945,601.41/211,183.40
  6. Step 6: Final answer
    x = 103,530.61

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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.