Finding the Fourth Proportional to 151,935.62, 209,660.20 and 83,951.81
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Solution
The fourth proportional to 151,935.62, 209,660.20 and 83,951.81 is: 115,847.45
Step by Step Solution
- Step 1: Write the proportion equation
151,935.62 : 209,660.20 = 83,951.81 : x - Step 2: Convert to fraction form
151,935.62/209,660.20 = 83,951.81/x - Step 3: Cross multiply
151,935.62x = 209,660.20 × 83,951.81 - Step 4: Simplify right side
151,935.62x = 17,601,352,803.01 - Step 5: Solve for x
x = 17,601,352,803.01/151,935.62 - Step 6: Final answer
x = 115,847.45
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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.