Home / 102,500.37-141,451.25-57,181.28

Finding the Fourth Proportional to 102,500.37, 141,451.25 and 57,181.28

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Solution

The fourth proportional to 102,500.37, 141,451.25 and 57,181.28 is: 78,910.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.37 : 141,451.25 = 57,181.28 : x
  2. Step 2: Convert to fraction form
    102,500.37/141,451.25 = 57,181.28/x
  3. Step 3: Cross multiply
    102,500.37x = 141,451.25 × 57,181.28
  4. Step 4: Simplify right side
    102,500.37x = 8,088,362,539.44
  5. Step 5: Solve for x
    x = 8,088,362,539.44/102,500.37
  6. Step 6: Final answer
    x = 78,910.57

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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.