Finding the Fourth Proportional to 118,403.75, 163,397.18 and 68,102.75
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Solution
The fourth proportional to 118,403.75, 163,397.18 and 68,102.75 is: 93,981.80
Step by Step Solution
- Step 1: Write the proportion equation
118,403.75 : 163,397.18 = 68,102.75 : x - Step 2: Convert to fraction form
118,403.75/163,397.18 = 68,102.75/x - Step 3: Cross multiply
118,403.75x = 163,397.18 × 68,102.75 - Step 4: Simplify right side
118,403.75x = 11,127,797,300.25 - Step 5: Solve for x
x = 11,127,797,300.25/118,403.75 - Step 6: Final answer
x = 93,981.80
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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.