Finding the Fourth Proportional to 136,552.86, 188,442.17 and 76,124.00
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Solution
The fourth proportional to 136,552.86, 188,442.17 and 76,124.00 is: 105,050.69
Step by Step Solution
- Step 1: Write the proportion equation
136,552.86 : 188,442.17 = 76,124.00 : x - Step 2: Convert to fraction form
136,552.86/188,442.17 = 76,124.00/x - Step 3: Cross multiply
136,552.86x = 188,442.17 × 76,124.00 - Step 4: Simplify right side
136,552.86x = 14,344,972,339.13 - Step 5: Solve for x
x = 14,344,972,339.13/136,552.86 - Step 6: Final answer
x = 105,050.69
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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.