Home / 111,072.29-166,220.76-90,847.94

Finding the Fourth Proportional to 111,072.29, 166,220.76 and 90,847.94

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Solution

The fourth proportional to 111,072.29, 166,220.76 and 90,847.94 is: 135,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,072.29 : 166,220.76 = 90,847.94 : x
  2. Step 2: Convert to fraction form
    111,072.29/166,220.76 = 90,847.94/x
  3. Step 3: Cross multiply
    111,072.29x = 166,220.76 × 90,847.94
  4. Step 4: Simplify right side
    111,072.29x = 15,100,813,631.23
  5. Step 5: Solve for x
    x = 15,100,813,631.23/111,072.29
  6. Step 6: Final answer
    x = 135,954.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.