Finding the Fourth Proportional to 136,487.58, 188,252.61 and 90,463.99
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Solution
The fourth proportional to 136,487.58, 188,252.61 and 90,463.99 is: 124,773.86
Step by Step Solution
- Step 1: Write the proportion equation
136,487.58 : 188,252.61 = 90,463.99 : x - Step 2: Convert to fraction form
136,487.58/188,252.61 = 90,463.99/x - Step 3: Cross multiply
136,487.58x = 188,252.61 × 90,463.99 - Step 4: Simplify right side
136,487.58x = 17,030,081,771.62 - Step 5: Solve for x
x = 17,030,081,771.62/136,487.58 - Step 6: Final answer
x = 124,773.86
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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.