Finding the Fourth Proportional to 157,186.83, 216,917.84 and 85,567.38
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Solution
The fourth proportional to 157,186.83, 216,917.84 and 85,567.38 is: 118,082.99
Step by Step Solution
- Step 1: Write the proportion equation
157,186.83 : 216,917.84 = 85,567.38 : x - Step 2: Convert to fraction form
157,186.83/216,917.84 = 85,567.38/x - Step 3: Cross multiply
157,186.83x = 216,917.84 × 85,567.38 - Step 4: Simplify right side
157,186.83x = 18,561,091,244.06 - Step 5: Solve for x
x = 18,561,091,244.06/157,186.83 - Step 6: Final answer
x = 118,082.99
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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.