Home / 123,162.82-169,964.66-66,574.19

Finding the Fourth Proportional to 123,162.82, 169,964.66 and 66,574.19

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Solution

The fourth proportional to 123,162.82, 169,964.66 and 66,574.19 is: 91,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,162.82 : 169,964.66 = 66,574.19 : x
  2. Step 2: Convert to fraction form
    123,162.82/169,964.66 = 66,574.19/x
  3. Step 3: Cross multiply
    123,162.82x = 169,964.66 × 66,574.19
  4. Step 4: Simplify right side
    123,162.82x = 11,315,260,159.47
  5. Step 5: Solve for x
    x = 11,315,260,159.47/123,162.82
  6. Step 6: Final answer
    x = 91,872.37

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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.