Home / 102,568.48-141,542.64-57,245.64

Finding the Fourth Proportional to 102,568.48, 141,542.64 and 57,245.64

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Solution

The fourth proportional to 102,568.48, 141,542.64 and 57,245.64 is: 78,997.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,568.48 : 141,542.64 = 57,245.64 : x
  2. Step 2: Convert to fraction form
    102,568.48/141,542.64 = 57,245.64/x
  3. Step 3: Cross multiply
    102,568.48x = 141,542.64 × 57,245.64
  4. Step 4: Simplify right side
    102,568.48x = 8,102,698,483.30
  5. Step 5: Solve for x
    x = 8,102,698,483.30/102,568.48
  6. Step 6: Final answer
    x = 78,997.94

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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.