Finding the Fourth Proportional to 117,634.62, 162,299.93 and 66,639.18
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Solution
The fourth proportional to 117,634.62, 162,299.93 and 66,639.18 is: 91,941.76
Step by Step Solution
- Step 1: Write the proportion equation
117,634.62 : 162,299.93 = 66,639.18 : x - Step 2: Convert to fraction form
117,634.62/162,299.93 = 66,639.18/x - Step 3: Cross multiply
117,634.62x = 162,299.93 × 66,639.18 - Step 4: Simplify right side
117,634.62x = 10,815,533,916.06 - Step 5: Solve for x
x = 10,815,533,916.06/117,634.62 - Step 6: Final answer
x = 91,941.76
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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.