Finding the Fourth Proportional to 102,670.88, 141,684.28 and 57,349.68
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Solution
The fourth proportional to 102,670.88, 141,684.28 and 57,349.68 is: 79,141.70
Step by Step Solution
- Step 1: Write the proportion equation
102,670.88 : 141,684.28 = 57,349.68 : x - Step 2: Convert to fraction form
102,670.88/141,684.28 = 57,349.68/x - Step 3: Cross multiply
102,670.88x = 141,684.28 × 57,349.68 - Step 4: Simplify right side
102,670.88x = 8,125,548,119.03 - Step 5: Solve for x
x = 8,125,548,119.03/102,670.88 - Step 6: Final answer
x = 79,141.70
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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.