Home / 149,066.82-205,693.49-100,773.80

Finding the Fourth Proportional to 149,066.82, 205,693.49 and 100,773.80

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Solution

The fourth proportional to 149,066.82, 205,693.49 and 100,773.80 is: 139,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,066.82 : 205,693.49 = 100,773.80 : x
  2. Step 2: Convert to fraction form
    149,066.82/205,693.49 = 100,773.80/x
  3. Step 3: Cross multiply
    149,066.82x = 205,693.49 × 100,773.80
  4. Step 4: Simplify right side
    149,066.82x = 20,728,514,622.56
  5. Step 5: Solve for x
    x = 20,728,514,622.56/149,066.82
  6. Step 6: Final answer
    x = 139,055.19

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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.