Finding the Fourth Proportional to 129,326.19, 178,552.16 and 88,558.57
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Solution
The fourth proportional to 129,326.19, 178,552.16 and 88,558.57 is: 122,266.99
Step by Step Solution
- Step 1: Write the proportion equation
129,326.19 : 178,552.16 = 88,558.57 : x - Step 2: Convert to fraction form
129,326.19/178,552.16 = 88,558.57/x - Step 3: Cross multiply
129,326.19x = 178,552.16 × 88,558.57 - Step 4: Simplify right side
129,326.19x = 15,812,323,960.01 - Step 5: Solve for x
x = 15,812,323,960.01/129,326.19 - Step 6: Final answer
x = 122,266.99
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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.