Home / 211,022.22-291,230.46-126,137.46

Finding the Fourth Proportional to 211,022.22, 291,230.46 and 126,137.46

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Solution

The fourth proportional to 211,022.22, 291,230.46 and 126,137.46 is: 174,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,022.22 : 291,230.46 = 126,137.46 : x
  2. Step 2: Convert to fraction form
    211,022.22/291,230.46 = 126,137.46/x
  3. Step 3: Cross multiply
    211,022.22x = 291,230.46 × 126,137.46
  4. Step 4: Simplify right side
    211,022.22x = 36,735,070,499.03
  5. Step 5: Solve for x
    x = 36,735,070,499.03/211,022.22
  6. Step 6: Final answer
    x = 174,081.53

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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.