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Finding the Fourth Proportional to 125,520.78, 173,219.88 and 68,933.34

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Solution

The fourth proportional to 125,520.78, 173,219.88 and 68,933.34 is: 95,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,520.78 : 173,219.88 = 68,933.34 : x
  2. Step 2: Convert to fraction form
    125,520.78/173,219.88 = 68,933.34/x
  3. Step 3: Cross multiply
    125,520.78x = 173,219.88 × 68,933.34
  4. Step 4: Simplify right side
    125,520.78x = 11,940,624,882.80
  5. Step 5: Solve for x
    x = 11,940,624,882.80/125,520.78
  6. Step 6: Final answer
    x = 95,128.67

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1.5x scale

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.