Finding the Fourth Proportional to 155,936.91, 215,193.06 and 84,316.98
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Solution
The fourth proportional to 155,936.91, 215,193.06 and 84,316.98 is: 116,357.50
Step by Step Solution
- Step 1: Write the proportion equation
155,936.91 : 215,193.06 = 84,316.98 : x - Step 2: Convert to fraction form
155,936.91/215,193.06 = 84,316.98/x - Step 3: Cross multiply
155,936.91x = 215,193.06 × 84,316.98 - Step 4: Simplify right side
155,936.91x = 18,144,428,936.16 - Step 5: Solve for x
x = 18,144,428,936.16/155,936.91 - Step 6: Final answer
x = 116,357.50
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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.