Home / 104,645.05-156,964.06-45,480.71

Finding the Fourth Proportional to 104,645.05, 156,964.06 and 45,480.71

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Solution

The fourth proportional to 104,645.05, 156,964.06 and 45,480.71 is: 68,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.05 : 156,964.06 = 45,480.71 : x
  2. Step 2: Convert to fraction form
    104,645.05/156,964.06 = 45,480.71/x
  3. Step 3: Cross multiply
    104,645.05x = 156,964.06 × 45,480.71
  4. Step 4: Simplify right side
    104,645.05x = 7,138,836,893.28
  5. Step 5: Solve for x
    x = 7,138,836,893.28/104,645.05
  6. Step 6: Final answer
    x = 68,219.54

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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.