Home / 167,450.81-231,084.63-90,971.42

Finding the Fourth Proportional to 167,450.81, 231,084.63 and 90,971.42

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Solution

The fourth proportional to 167,450.81, 231,084.63 and 90,971.42 is: 125,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,450.81 : 231,084.63 = 90,971.42 : x
  2. Step 2: Convert to fraction form
    167,450.81/231,084.63 = 90,971.42/x
  3. Step 3: Cross multiply
    167,450.81x = 231,084.63 × 90,971.42
  4. Step 4: Simplify right side
    167,450.81x = 21,022,095,775.85
  5. Step 5: Solve for x
    x = 21,022,095,775.85/167,450.81
  6. Step 6: Final answer
    x = 125,541.92

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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.