Finding the Fourth Proportional to 100,954.14, 139,317.63 and 55,633.75
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Solution
The fourth proportional to 100,954.14, 139,317.63 and 55,633.75 is: 76,775.08
Step by Step Solution
- Step 1: Write the proportion equation
100,954.14 : 139,317.63 = 55,633.75 : x - Step 2: Convert to fraction form
100,954.14/139,317.63 = 55,633.75/x - Step 3: Cross multiply
100,954.14x = 139,317.63 × 55,633.75 - Step 4: Simplify right side
100,954.14x = 7,750,762,032.27 - Step 5: Solve for x
x = 7,750,762,032.27/100,954.14 - Step 6: Final answer
x = 76,775.08
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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.