Home / 211,091.24-291,322.56-120,426.32

Finding the Fourth Proportional to 211,091.24, 291,322.56 and 120,426.32

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Solution

The fourth proportional to 211,091.24, 291,322.56 and 120,426.32 is: 166,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,091.24 : 291,322.56 = 120,426.32 : x
  2. Step 2: Convert to fraction form
    211,091.24/291,322.56 = 120,426.32/x
  3. Step 3: Cross multiply
    211,091.24x = 291,322.56 × 120,426.32
  4. Step 4: Simplify right side
    211,091.24x = 35,082,903,833.78
  5. Step 5: Solve for x
    x = 35,082,903,833.78/211,091.24
  6. Step 6: Final answer
    x = 166,197.82

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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.