Finding the Fourth Proportional to 161,493.92, 242,240.97 and 72,643.63
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Solution
The fourth proportional to 161,493.92, 242,240.97 and 72,643.63 is: 108,965.49
Step by Step Solution
- Step 1: Write the proportion equation
161,493.92 : 242,240.97 = 72,643.63 : x - Step 2: Convert to fraction form
161,493.92/242,240.97 = 72,643.63/x - Step 3: Cross multiply
161,493.92x = 242,240.97 × 72,643.63 - Step 4: Simplify right side
161,493.92x = 17,597,263,395.52 - Step 5: Solve for x
x = 17,597,263,395.52/161,493.92 - Step 6: Final answer
x = 108,965.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.