Finding the Fourth Proportional to 97,167.92, 133,809.40 and 84,415.28
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Solution
The fourth proportional to 97,167.92, 133,809.40 and 84,415.28 is: 116,247.81
Step by Step Solution
- Step 1: Write the proportion equation
97,167.92 : 133,809.40 = 84,415.28 : x - Step 2: Convert to fraction form
97,167.92/133,809.40 = 84,415.28/x - Step 3: Cross multiply
97,167.92x = 133,809.40 × 84,415.28 - Step 4: Simplify right side
97,167.92x = 11,295,557,967.63 - Step 5: Solve for x
x = 11,295,557,967.63/97,167.92 - Step 6: Final answer
x = 116,247.81
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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.