Home / 222,183.21-306,605.21-126,720.66

Finding the Fourth Proportional to 222,183.21, 306,605.21 and 126,720.66

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Solution

The fourth proportional to 222,183.21, 306,605.21 and 126,720.66 is: 174,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,183.21 : 306,605.21 = 126,720.66 : x
  2. Step 2: Convert to fraction form
    222,183.21/306,605.21 = 126,720.66/x
  3. Step 3: Cross multiply
    222,183.21x = 306,605.21 × 126,720.66
  4. Step 4: Simplify right side
    222,183.21x = 38,853,213,937.04
  5. Step 5: Solve for x
    x = 38,853,213,937.04/222,183.21
  6. Step 6: Final answer
    x = 174,870.16

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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.