Finding the Fourth Proportional to 171,612.81, 236,563.15 and 120,482.10
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Solution
The fourth proportional to 171,612.81, 236,563.15 and 120,482.10 is: 166,080.99
Step by Step Solution
- Step 1: Write the proportion equation
171,612.81 : 236,563.15 = 120,482.10 : x - Step 2: Convert to fraction form
171,612.81/236,563.15 = 120,482.10/x - Step 3: Cross multiply
171,612.81x = 236,563.15 × 120,482.10 - Step 4: Simplify right side
171,612.81x = 28,501,625,094.62 - Step 5: Solve for x
x = 28,501,625,094.62/171,612.81 - Step 6: Final answer
x = 166,080.99
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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.