Finding the Fourth Proportional to 113,858.60, 157,112.93 and 66,102.62
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Solution
The fourth proportional to 113,858.60, 157,112.93 and 66,102.62 is: 91,214.68
Step by Step Solution
- Step 1: Write the proportion equation
113,858.60 : 157,112.93 = 66,102.62 : x - Step 2: Convert to fraction form
113,858.60/157,112.93 = 66,102.62/x - Step 3: Cross multiply
113,858.60x = 157,112.93 × 66,102.62 - Step 4: Simplify right side
113,858.60x = 10,385,575,688.57 - Step 5: Solve for x
x = 10,385,575,688.57/113,858.60 - Step 6: Final answer
x = 91,214.68
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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.