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Finding the Fourth Proportional to 102,703.41, 154,181.99 and 48,719.72

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Solution

The fourth proportional to 102,703.41, 154,181.99 and 48,719.72 is: 73,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.41 : 154,181.99 = 48,719.72 : x
  2. Step 2: Convert to fraction form
    102,703.41/154,181.99 = 48,719.72/x
  3. Step 3: Cross multiply
    102,703.41x = 154,181.99 × 48,719.72
  4. Step 4: Simplify right side
    102,703.41x = 7,511,702,367.33
  5. Step 5: Solve for x
    x = 7,511,702,367.33/102,703.41
  6. Step 6: Final answer
    x = 73,139.75

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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.