Home / 108,013.44-148,961.64-67,731.60

Finding the Fourth Proportional to 108,013.44, 148,961.64 and 67,731.60

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Solution

The fourth proportional to 108,013.44, 148,961.64 and 67,731.60 is: 93,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,013.44 : 148,961.64 = 67,731.60 : x
  2. Step 2: Convert to fraction form
    108,013.44/148,961.64 = 67,731.60/x
  3. Step 3: Cross multiply
    108,013.44x = 148,961.64 × 67,731.60
  4. Step 4: Simplify right side
    108,013.44x = 10,089,410,215.82
  5. Step 5: Solve for x
    x = 10,089,410,215.82/108,013.44
  6. Step 6: Final answer
    x = 93,408.84

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1.5x scale

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.