Finding the Fourth Proportional to 134,858.18, 186,104.12 and 74,428.88
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Solution
The fourth proportional to 134,858.18, 186,104.12 and 74,428.88 is: 102,711.75
Step by Step Solution
- Step 1: Write the proportion equation
134,858.18 : 186,104.12 = 74,428.88 : x - Step 2: Convert to fraction form
134,858.18/186,104.12 = 74,428.88/x - Step 3: Cross multiply
134,858.18x = 186,104.12 × 74,428.88 - Step 4: Simplify right side
134,858.18x = 13,851,519,912.32 - Step 5: Solve for x
x = 13,851,519,912.32/134,858.18 - Step 6: Final answer
x = 102,711.75
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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.