Home / 98,940.56-148,355.36-42,745.60

Finding the Fourth Proportional to 98,940.56, 148,355.36 and 42,745.60

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Solution

The fourth proportional to 98,940.56, 148,355.36 and 42,745.60 is: 64,094.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,940.56 : 148,355.36 = 42,745.60 : x
  2. Step 2: Convert to fraction form
    98,940.56/148,355.36 = 42,745.60/x
  3. Step 3: Cross multiply
    98,940.56x = 148,355.36 × 42,745.60
  4. Step 4: Simplify right side
    98,940.56x = 6,341,538,876.42
  5. Step 5: Solve for x
    x = 6,341,538,876.42/98,940.56
  6. Step 6: Final answer
    x = 64,094.43

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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.