Finding the Fourth Proportional to 151,025.99, 208,411.65 and 83,043.09
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Solution
The fourth proportional to 151,025.99, 208,411.65 and 83,043.09 is: 114,597.15
Step by Step Solution
- Step 1: Write the proportion equation
151,025.99 : 208,411.65 = 83,043.09 : x - Step 2: Convert to fraction form
151,025.99/208,411.65 = 83,043.09/x - Step 3: Cross multiply
151,025.99x = 208,411.65 × 83,043.09 - Step 4: Simplify right side
151,025.99x = 17,307,147,408.00 - Step 5: Solve for x
x = 17,307,147,408.00/151,025.99 - Step 6: Final answer
x = 114,597.15
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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.