Finding the Fourth Proportional to 157,616.62, 217,511.64 and 85,998.14
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Solution
The fourth proportional to 157,616.62, 217,511.64 and 85,998.14 is: 118,677.82
Step by Step Solution
- Step 1: Write the proportion equation
157,616.62 : 217,511.64 = 85,998.14 : x - Step 2: Convert to fraction form
157,616.62/217,511.64 = 85,998.14/x - Step 3: Cross multiply
157,616.62x = 217,511.64 × 85,998.14 - Step 4: Simplify right side
157,616.62x = 18,705,596,468.35 - Step 5: Solve for x
x = 18,705,596,468.35/157,616.62 - Step 6: Final answer
x = 118,677.82
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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.