Finding the Fourth Proportional to 155,936.83, 215,192.98 and 84,316.84
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Solution
The fourth proportional to 155,936.83, 215,192.98 and 84,316.84 is: 116,357.32
Step by Step Solution
- Step 1: Write the proportion equation
155,936.83 : 215,192.98 = 84,316.84 : x - Step 2: Convert to fraction form
155,936.83/215,192.98 = 84,316.84/x - Step 3: Cross multiply
155,936.83x = 215,192.98 × 84,316.84 - Step 4: Simplify right side
155,936.83x = 18,144,392,063.78 - Step 5: Solve for x
x = 18,144,392,063.78/155,936.83 - Step 6: Final answer
x = 116,357.32
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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.