Finding the Fourth Proportional to 155,939.16, 215,195.67 and 84,318.96
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Solution
The fourth proportional to 155,939.16, 215,195.67 and 84,318.96 is: 116,359.96
Step by Step Solution
- Step 1: Write the proportion equation
155,939.16 : 215,195.67 = 84,318.96 : x - Step 2: Convert to fraction form
155,939.16/215,195.67 = 84,318.96/x - Step 3: Cross multiply
155,939.16x = 215,195.67 × 84,318.96 - Step 4: Simplify right side
155,939.16x = 18,145,075,090.90 - Step 5: Solve for x
x = 18,145,075,090.90/155,939.16 - Step 6: Final answer
x = 116,359.96
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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.