Home / 98,930.06-148,339.60-42,735.09

Finding the Fourth Proportional to 98,930.06, 148,339.60 and 42,735.09

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Solution

The fourth proportional to 98,930.06, 148,339.60 and 42,735.09 is: 64,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,930.06 : 148,339.60 = 42,735.09 : x
  2. Step 2: Convert to fraction form
    98,930.06/148,339.60 = 42,735.09/x
  3. Step 3: Cross multiply
    98,930.06x = 148,339.60 × 42,735.09
  4. Step 4: Simplify right side
    98,930.06x = 6,339,305,942.89
  5. Step 5: Solve for x
    x = 6,339,305,942.89/98,930.06
  6. Step 6: Final answer
    x = 64,078.67

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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.