Home / 83,181.40-124,738.94-48,145.72

Finding the Fourth Proportional to 83,181.40, 124,738.94 and 48,145.72

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Solution

The fourth proportional to 83,181.40, 124,738.94 and 48,145.72 is: 72,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,181.40 : 124,738.94 = 48,145.72 : x
  2. Step 2: Convert to fraction form
    83,181.40/124,738.94 = 48,145.72/x
  3. Step 3: Cross multiply
    83,181.40x = 124,738.94 × 48,145.72
  4. Step 4: Simplify right side
    83,181.40x = 6,005,646,078.34
  5. Step 5: Solve for x
    x = 6,005,646,078.34/83,181.40
  6. Step 6: Final answer
    x = 72,199.39

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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.