Finding the Fourth Proportional to 136,203.62, 187,967.07 and 113,504.63
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Solution
The fourth proportional to 136,203.62, 187,967.07 and 113,504.63 is: 156,641.45
Step by Step Solution
- Step 1: Write the proportion equation
136,203.62 : 187,967.07 = 113,504.63 : x - Step 2: Convert to fraction form
136,203.62/187,967.07 = 113,504.63/x - Step 3: Cross multiply
136,203.62x = 187,967.07 × 113,504.63 - Step 4: Simplify right side
136,203.62x = 21,335,131,792.70 - Step 5: Solve for x
x = 21,335,131,792.70/136,203.62 - Step 6: Final answer
x = 156,641.45
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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.