Finding the Fourth Proportional to 117,438.41, 162,107.03 and 69,691.75
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Solution
The fourth proportional to 117,438.41, 162,107.03 and 69,691.75 is: 96,199.55
Step by Step Solution
- Step 1: Write the proportion equation
117,438.41 : 162,107.03 = 69,691.75 : x - Step 2: Convert to fraction form
117,438.41/162,107.03 = 69,691.75/x - Step 3: Cross multiply
117,438.41x = 162,107.03 × 69,691.75 - Step 4: Simplify right side
117,438.41x = 11,297,522,376.96 - Step 5: Solve for x
x = 11,297,522,376.96/117,438.41 - Step 6: Final answer
x = 96,199.55
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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.