Home / 211,002.09-291,157.07-168,090.89

Finding the Fourth Proportional to 211,002.09, 291,157.07 and 168,090.89

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Solution

The fourth proportional to 211,002.09, 291,157.07 and 168,090.89 is: 231,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,002.09 : 291,157.07 = 168,090.89 : x
  2. Step 2: Convert to fraction form
    211,002.09/291,157.07 = 168,090.89/x
  3. Step 3: Cross multiply
    211,002.09x = 291,157.07 × 168,090.89
  4. Step 4: Simplify right side
    211,002.09x = 48,940,850,185.64
  5. Step 5: Solve for x
    x = 48,940,850,185.64/211,002.09
  6. Step 6: Final answer
    x = 231,944.86

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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.