Finding the Fourth Proportional to 102,296.93, 141,174.12 and 56,974.91
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Solution
The fourth proportional to 102,296.93, 141,174.12 and 56,974.91 is: 78,627.80
Step by Step Solution
- Step 1: Write the proportion equation
102,296.93 : 141,174.12 = 56,974.91 : x - Step 2: Convert to fraction form
102,296.93/141,174.12 = 56,974.91/x - Step 3: Cross multiply
102,296.93x = 141,174.12 × 56,974.91 - Step 4: Simplify right side
102,296.93x = 8,043,382,075.46 - Step 5: Solve for x
x = 8,043,382,075.46/102,296.93 - Step 6: Final answer
x = 78,627.80
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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.