Finding the Fourth Proportional to 129,320.31, 178,544.01 and 88,552.65
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Solution
The fourth proportional to 129,320.31, 178,544.01 and 88,552.65 is: 122,258.79
Step by Step Solution
- Step 1: Write the proportion equation
129,320.31 : 178,544.01 = 88,552.65 : x - Step 2: Convert to fraction form
129,320.31/178,544.01 = 88,552.65/x - Step 3: Cross multiply
129,320.31x = 178,544.01 × 88,552.65 - Step 4: Simplify right side
129,320.31x = 15,810,545,227.13 - Step 5: Solve for x
x = 15,810,545,227.13/129,320.31 - Step 6: Final answer
x = 122,258.79
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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.