Home / 211,333.25-291,639.96-115,840.60

Finding the Fourth Proportional to 211,333.25, 291,639.96 and 115,840.60

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Solution

The fourth proportional to 211,333.25, 291,639.96 and 115,840.60 is: 159,860.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,333.25 : 291,639.96 = 115,840.60 : x
  2. Step 2: Convert to fraction form
    211,333.25/291,639.96 = 115,840.60/x
  3. Step 3: Cross multiply
    211,333.25x = 291,639.96 × 115,840.60
  4. Step 4: Simplify right side
    211,333.25x = 33,783,745,912.97
  5. Step 5: Solve for x
    x = 33,783,745,912.97/211,333.25
  6. Step 6: Final answer
    x = 159,860.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.