Home / 211,131.97-291,383.06-120,501.65

Finding the Fourth Proportional to 211,131.97, 291,383.06 and 120,501.65

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Solution

The fourth proportional to 211,131.97, 291,383.06 and 120,501.65 is: 166,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,131.97 : 291,383.06 = 120,501.65 : x
  2. Step 2: Convert to fraction form
    211,131.97/291,383.06 = 120,501.65/x
  3. Step 3: Cross multiply
    211,131.97x = 291,383.06 × 120,501.65
  4. Step 4: Simplify right side
    211,131.97x = 35,112,139,638.00
  5. Step 5: Solve for x
    x = 35,112,139,638.00/211,131.97
  6. Step 6: Final answer
    x = 166,304.23

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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.