Finding the Fourth Proportional to 128,497.92, 192,749.44 and 35,006.08
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Solution
The fourth proportional to 128,497.92, 192,749.44 and 35,006.08 is: 52,509.82
Step by Step Solution
- Step 1: Write the proportion equation
128,497.92 : 192,749.44 = 35,006.08 : x - Step 2: Convert to fraction form
128,497.92/192,749.44 = 35,006.08/x - Step 3: Cross multiply
128,497.92x = 192,749.44 × 35,006.08 - Step 4: Simplify right side
128,497.92x = 6,747,402,316.60 - Step 5: Solve for x
x = 6,747,402,316.60/128,497.92 - Step 6: Final answer
x = 52,509.82
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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.