Finding the Fourth Proportional to 115,725.54, 173,587.05 and 87,816.99
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Solution
The fourth proportional to 115,725.54, 173,587.05 and 87,816.99 is: 131,724.53
Step by Step Solution
- Step 1: Write the proportion equation
115,725.54 : 173,587.05 = 87,816.99 : x - Step 2: Convert to fraction form
115,725.54/173,587.05 = 87,816.99/x - Step 3: Cross multiply
115,725.54x = 173,587.05 × 87,816.99 - Step 4: Simplify right side
115,725.54x = 15,243,891,366.04 - Step 5: Solve for x
x = 15,243,891,366.04/115,725.54 - Step 6: Final answer
x = 131,724.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.