Home / 198,027-273,294.54-108,620.28

Finding the Fourth Proportional to 198,027, 273,294.54 and 108,620.28

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Solution

The fourth proportional to 198,027, 273,294.54 and 108,620.28 is: 149,905.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,027 : 273,294.54 = 108,620.28 : x
  2. Step 2: Convert to fraction form
    198,027/273,294.54 = 108,620.28/x
  3. Step 3: Cross multiply
    198,027x = 273,294.54 × 108,620.28
  4. Step 4: Simplify right side
    198,027x = 29,685,329,457.27
  5. Step 5: Solve for x
    x = 29,685,329,457.27/198,027
  6. Step 6: Final answer
    x = 149,905.46

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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.