Finding the Fourth Proportional to 118,379.75, 163,368.93 and 68,078.75
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Solution
The fourth proportional to 118,379.75, 163,368.93 and 68,078.75 is: 93,951.48
Step by Step Solution
- Step 1: Write the proportion equation
118,379.75 : 163,368.93 = 68,078.75 : x - Step 2: Convert to fraction form
118,379.75/163,368.93 = 68,078.75/x - Step 3: Cross multiply
118,379.75x = 163,368.93 × 68,078.75 - Step 4: Simplify right side
118,379.75x = 11,121,952,543.24 - Step 5: Solve for x
x = 11,121,952,543.24/118,379.75 - Step 6: Final answer
x = 93,951.48
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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.