Finding the Fourth Proportional to 151,930.08, 209,622.96 and 84,860.64
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Solution
The fourth proportional to 151,930.08, 209,622.96 and 84,860.64 is: 117,085.03
Step by Step Solution
- Step 1: Write the proportion equation
151,930.08 : 209,622.96 = 84,860.64 : x - Step 2: Convert to fraction form
151,930.08/209,622.96 = 84,860.64/x - Step 3: Cross multiply
151,930.08x = 209,622.96 × 84,860.64 - Step 4: Simplify right side
151,930.08x = 17,788,738,544.29 - Step 5: Solve for x
x = 17,788,738,544.29/151,930.08 - Step 6: Final answer
x = 117,085.03
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1.5x scale
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.