Home / 111,450.36-153,722.73-66,091.98

Finding the Fourth Proportional to 111,450.36, 153,722.73 and 66,091.98

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Solution

The fourth proportional to 111,450.36, 153,722.73 and 66,091.98 is: 91,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,450.36 : 153,722.73 = 66,091.98 : x
  2. Step 2: Convert to fraction form
    111,450.36/153,722.73 = 66,091.98/x
  3. Step 3: Cross multiply
    111,450.36x = 153,722.73 × 66,091.98
  4. Step 4: Simplify right side
    111,450.36x = 10,159,839,596.71
  5. Step 5: Solve for x
    x = 10,159,839,596.71/111,450.36
  6. Step 6: Final answer
    x = 91,160.22

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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.