Finding the Fourth Proportional to 128,795.97, 177,533.14 and 101,527.62
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Solution
The fourth proportional to 128,795.97, 177,533.14 and 101,527.62 is: 139,946.28
Step by Step Solution
- Step 1: Write the proportion equation
128,795.97 : 177,533.14 = 101,527.62 : x - Step 2: Convert to fraction form
128,795.97/177,533.14 = 101,527.62/x - Step 3: Cross multiply
128,795.97x = 177,533.14 × 101,527.62 - Step 4: Simplify right side
128,795.97x = 18,024,517,175.33 - Step 5: Solve for x
x = 18,024,517,175.33/128,795.97 - Step 6: Final answer
x = 139,946.28
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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.