Home / 128,676.96-192,968-44,415.68

Finding the Fourth Proportional to 128,676.96, 192,968 and 44,415.68

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Solution

The fourth proportional to 128,676.96, 192,968 and 44,415.68 is: 66,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,676.96 : 192,968 = 44,415.68 : x
  2. Step 2: Convert to fraction form
    128,676.96/192,968 = 44,415.68/x
  3. Step 3: Cross multiply
    128,676.96x = 192,968 × 44,415.68
  4. Step 4: Simplify right side
    128,676.96x = 8,570,804,938.24
  5. Step 5: Solve for x
    x = 8,570,804,938.24/128,676.96
  6. Step 6: Final answer
    x = 66,607.15

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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.