Finding the Fourth Proportional to 102,285.68, 141,197.88 and 68,771.12
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Solution
The fourth proportional to 102,285.68, 141,197.88 and 68,771.12 is: 94,933.49
Step by Step Solution
- Step 1: Write the proportion equation
102,285.68 : 141,197.88 = 68,771.12 : x - Step 2: Convert to fraction form
102,285.68/141,197.88 = 68,771.12/x - Step 3: Cross multiply
102,285.68x = 141,197.88 × 68,771.12 - Step 4: Simplify right side
102,285.68x = 9,710,336,349.23 - Step 5: Solve for x
x = 9,710,336,349.23/102,285.68 - Step 6: Final answer
x = 94,933.49
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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.