Home / 211,062.52-291,260.32-120,416.64

Finding the Fourth Proportional to 211,062.52, 291,260.32 and 120,416.64

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Solution

The fourth proportional to 211,062.52, 291,260.32 and 120,416.64 is: 166,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,062.52 : 291,260.32 = 120,416.64 : x
  2. Step 2: Convert to fraction form
    211,062.52/291,260.32 = 120,416.64/x
  3. Step 3: Cross multiply
    211,062.52x = 291,260.32 × 120,416.64
  4. Step 4: Simplify right side
    211,062.52x = 35,072,589,099.72
  5. Step 5: Solve for x
    x = 35,072,589,099.72/211,062.52
  6. Step 6: Final answer
    x = 166,171.56

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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.