Home / 207,183.72-285,935.64-121,169

Finding the Fourth Proportional to 207,183.72, 285,935.64 and 121,169

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Solution

The fourth proportional to 207,183.72, 285,935.64 and 121,169 is: 167,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,183.72 : 285,935.64 = 121,169 : x
  2. Step 2: Convert to fraction form
    207,183.72/285,935.64 = 121,169/x
  3. Step 3: Cross multiply
    207,183.72x = 285,935.64 × 121,169
  4. Step 4: Simplify right side
    207,183.72x = 34,646,535,563.16
  5. Step 5: Solve for x
    x = 34,646,535,563.16/207,183.72
  6. Step 6: Final answer
    x = 167,226.15

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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.