Finding the Fourth Proportional to 102,393.96, 141,311.88 and 57,086.62
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Solution
The fourth proportional to 102,393.96, 141,311.88 and 57,086.62 is: 78,784.12
Step by Step Solution
- Step 1: Write the proportion equation
102,393.96 : 141,311.88 = 57,086.62 : x - Step 2: Convert to fraction form
102,393.96/141,311.88 = 57,086.62/x - Step 3: Cross multiply
102,393.96x = 141,311.88 × 57,086.62 - Step 4: Simplify right side
102,393.96x = 8,067,017,595.05 - Step 5: Solve for x
x = 8,067,017,595.05/102,393.96 - Step 6: Final answer
x = 78,784.12
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1.5x scale
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.