Finding the Fourth Proportional to 128,275.44, 177,069.60 and 114,822.96
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Solution
The fourth proportional to 128,275.44, 177,069.60 and 114,822.96 is: 158,499.99
Step by Step Solution
- Step 1: Write the proportion equation
128,275.44 : 177,069.60 = 114,822.96 : x - Step 2: Convert to fraction form
128,275.44/177,069.60 = 114,822.96/x - Step 3: Cross multiply
128,275.44x = 177,069.60 × 114,822.96 - Step 4: Simplify right side
128,275.44x = 20,331,655,598.02 - Step 5: Solve for x
x = 20,331,655,598.02/128,275.44 - Step 6: Final answer
x = 158,499.99
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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.