Home / 167,679.36-231,605.18-121,665.17

Finding the Fourth Proportional to 167,679.36, 231,605.18 and 121,665.17

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Solution

The fourth proportional to 167,679.36, 231,605.18 and 121,665.17 is: 168,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,679.36 : 231,605.18 = 121,665.17 : x
  2. Step 2: Convert to fraction form
    167,679.36/231,605.18 = 121,665.17/x
  3. Step 3: Cross multiply
    167,679.36x = 231,605.18 × 121,665.17
  4. Step 4: Simplify right side
    167,679.36x = 28,178,283,322.73
  5. Step 5: Solve for x
    x = 28,178,283,322.73/167,679.36
  6. Step 6: Final answer
    x = 168,048.61

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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.