Finding the Fourth Proportional to 141,158.80, 194,762.64 and 84,530.08
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Solution
The fourth proportional to 141,158.80, 194,762.64 and 84,530.08 is: 116,629.65
Step by Step Solution
- Step 1: Write the proportion equation
141,158.80 : 194,762.64 = 84,530.08 : x - Step 2: Convert to fraction form
141,158.80/194,762.64 = 84,530.08/x - Step 3: Cross multiply
141,158.80x = 194,762.64 × 84,530.08 - Step 4: Simplify right side
141,158.80x = 16,463,301,540.21 - Step 5: Solve for x
x = 16,463,301,540.21/141,158.80 - Step 6: Final answer
x = 116,629.65
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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.