Finding the Fourth Proportional to 128,093.99, 176,768.93 and 70,736.94
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Solution
The fourth proportional to 128,093.99, 176,768.93 and 70,736.94 is: 97,616.55
Step by Step Solution
- Step 1: Write the proportion equation
128,093.99 : 176,768.93 = 70,736.94 : x - Step 2: Convert to fraction form
128,093.99/176,768.93 = 70,736.94/x - Step 3: Cross multiply
128,093.99x = 176,768.93 × 70,736.94 - Step 4: Simplify right side
128,093.99x = 12,504,093,372.12 - Step 5: Solve for x
x = 12,504,093,372.12/128,093.99 - Step 6: Final answer
x = 97,616.55
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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.