Home / 281,958.05-389,066.10-161,107.16

Finding the Fourth Proportional to 281,958.05, 389,066.10 and 161,107.16

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Solution

The fourth proportional to 281,958.05, 389,066.10 and 161,107.16 is: 222,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,958.05 : 389,066.10 = 161,107.16 : x
  2. Step 2: Convert to fraction form
    281,958.05/389,066.10 = 161,107.16/x
  3. Step 3: Cross multiply
    281,958.05x = 389,066.10 × 161,107.16
  4. Step 4: Simplify right side
    281,958.05x = 62,681,332,477.95
  5. Step 5: Solve for x
    x = 62,681,332,477.95/281,958.05
  6. Step 6: Final answer
    x = 222,307.30

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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.