Home / 211,183.11-291,436.01-115,683.50

Finding the Fourth Proportional to 211,183.11, 291,436.01 and 115,683.50

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Solution

The fourth proportional to 211,183.11, 291,436.01 and 115,683.50 is: 159,645.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,183.11 : 291,436.01 = 115,683.50 : x
  2. Step 2: Convert to fraction form
    211,183.11/291,436.01 = 115,683.50/x
  3. Step 3: Cross multiply
    211,183.11x = 291,436.01 × 115,683.50
  4. Step 4: Simplify right side
    211,183.11x = 33,714,335,627.24
  5. Step 5: Solve for x
    x = 33,714,335,627.24/211,183.11
  6. Step 6: Final answer
    x = 159,645.04

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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.