Home / 134,789.80-202,227.90-90,466.60

Finding the Fourth Proportional to 134,789.80, 202,227.90 and 90,466.60

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Solution

The fourth proportional to 134,789.80, 202,227.90 and 90,466.60 is: 135,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,789.80 : 202,227.90 = 90,466.60 : x
  2. Step 2: Convert to fraction form
    134,789.80/202,227.90 = 90,466.60/x
  3. Step 3: Cross multiply
    134,789.80x = 202,227.90 × 90,466.60
  4. Step 4: Simplify right side
    134,789.80x = 18,294,870,538.14
  5. Step 5: Solve for x
    x = 18,294,870,538.14/134,789.80
  6. Step 6: Final answer
    x = 135,728.89

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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.