Home / 103,182.32-154,773.48-68,113.78

Finding the Fourth Proportional to 103,182.32, 154,773.48 and 68,113.78

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Solution

The fourth proportional to 103,182.32, 154,773.48 and 68,113.78 is: 102,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,182.32 : 154,773.48 = 68,113.78 : x
  2. Step 2: Convert to fraction form
    103,182.32/154,773.48 = 68,113.78/x
  3. Step 3: Cross multiply
    103,182.32x = 154,773.48 × 68,113.78
  4. Step 4: Simplify right side
    103,182.32x = 10,542,206,635.05
  5. Step 5: Solve for x
    x = 10,542,206,635.05/103,182.32
  6. Step 6: Final answer
    x = 102,170.67

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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.