Home / 211,764.55-292,234.22-121,120.39

Finding the Fourth Proportional to 211,764.55, 292,234.22 and 121,120.39

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Solution

The fourth proportional to 211,764.55, 292,234.22 and 121,120.39 is: 167,145.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,764.55 : 292,234.22 = 121,120.39 : x
  2. Step 2: Convert to fraction form
    211,764.55/292,234.22 = 121,120.39/x
  3. Step 3: Cross multiply
    211,764.55x = 292,234.22 × 121,120.39
  4. Step 4: Simplify right side
    211,764.55x = 35,395,522,697.75
  5. Step 5: Solve for x
    x = 35,395,522,697.75/211,764.55
  6. Step 6: Final answer
    x = 167,145.65

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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.