Finding the Fourth Proportional to 117,137.30, 161,646.50 and 65,454.84
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Solution
The fourth proportional to 117,137.30, 161,646.50 and 65,454.84 is: 90,326.02
Step by Step Solution
- Step 1: Write the proportion equation
117,137.30 : 161,646.50 = 65,454.84 : x - Step 2: Convert to fraction form
117,137.30/161,646.50 = 65,454.84/x - Step 3: Cross multiply
117,137.30x = 161,646.50 × 65,454.84 - Step 4: Simplify right side
117,137.30x = 10,580,545,957.70 - Step 5: Solve for x
x = 10,580,545,957.70/117,137.30 - Step 6: Final answer
x = 90,326.02
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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.