Finding the Fourth Proportional to 128,845.56, 177,716.88 and 124,510.44
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Solution
The fourth proportional to 128,845.56, 177,716.88 and 124,510.44 is: 171,737.44
Step by Step Solution
- Step 1: Write the proportion equation
128,845.56 : 177,716.88 = 124,510.44 : x - Step 2: Convert to fraction form
128,845.56/177,716.88 = 124,510.44/x - Step 3: Cross multiply
128,845.56x = 177,716.88 × 124,510.44 - Step 4: Simplify right side
128,845.56x = 22,127,606,924.23 - Step 5: Solve for x
x = 22,127,606,924.23/128,845.56 - Step 6: Final answer
x = 171,737.44
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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.