Finding the Fourth Proportional to 117,146.02, 161,619.69 and 71,807.62
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Solution
The fourth proportional to 117,146.02, 161,619.69 and 71,807.62 is: 99,068.88
Step by Step Solution
- Step 1: Write the proportion equation
117,146.02 : 161,619.69 = 71,807.62 : x - Step 2: Convert to fraction form
117,146.02/161,619.69 = 71,807.62/x - Step 3: Cross multiply
117,146.02x = 161,619.69 × 71,807.62 - Step 4: Simplify right side
117,146.02x = 11,605,525,284.04 - Step 5: Solve for x
x = 11,605,525,284.04/117,146.02 - Step 6: Final answer
x = 99,068.88
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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.