Finding the Fourth Proportional to 165,943.70, 248,915.55 and 55,135.70
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Solution
The fourth proportional to 165,943.70, 248,915.55 and 55,135.70 is: 82,703.55
Step by Step Solution
- Step 1: Write the proportion equation
165,943.70 : 248,915.55 = 55,135.70 : x - Step 2: Convert to fraction form
165,943.70/248,915.55 = 55,135.70/x - Step 3: Cross multiply
165,943.70x = 248,915.55 × 55,135.70 - Step 4: Simplify right side
165,943.70x = 13,724,133,090.14 - Step 5: Solve for x
x = 13,724,133,090.14/165,943.70 - Step 6: Final answer
x = 82,703.55
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1.5x scale
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.