Finding the Fourth Proportional to 128,852.49, 193,092.20 and 88,830.39
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Solution
The fourth proportional to 128,852.49, 193,092.20 and 88,830.39 is: 133,116.99
Step by Step Solution
- Step 1: Write the proportion equation
128,852.49 : 193,092.20 = 88,830.39 : x - Step 2: Convert to fraction form
128,852.49/193,092.20 = 88,830.39/x - Step 3: Cross multiply
128,852.49x = 193,092.20 × 88,830.39 - Step 4: Simplify right side
128,852.49x = 17,152,455,431.96 - Step 5: Solve for x
x = 17,152,455,431.96/128,852.49 - Step 6: Final answer
x = 133,116.99
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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.