Finding the Fourth Proportional to 131,651.39, 181,684.07 and 77,195.99
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Solution
The fourth proportional to 131,651.39, 181,684.07 and 77,195.99 is: 106,533.48
Step by Step Solution
- Step 1: Write the proportion equation
131,651.39 : 181,684.07 = 77,195.99 : x - Step 2: Convert to fraction form
131,651.39/181,684.07 = 77,195.99/x - Step 3: Cross multiply
131,651.39x = 181,684.07 × 77,195.99 - Step 4: Simplify right side
131,651.39x = 14,025,281,230.78 - Step 5: Solve for x
x = 14,025,281,230.78/131,651.39 - Step 6: Final answer
x = 106,533.48
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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.