Finding the Fourth Proportional to 88,362.16, 121,984.96 and 68,173.68
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Solution
The fourth proportional to 88,362.16, 121,984.96 and 68,173.68 is: 94,114.54
Step by Step Solution
- Step 1: Write the proportion equation
88,362.16 : 121,984.96 = 68,173.68 : x - Step 2: Convert to fraction form
88,362.16/121,984.96 = 68,173.68/x - Step 3: Cross multiply
88,362.16x = 121,984.96 × 68,173.68 - Step 4: Simplify right side
88,362.16x = 8,316,163,627.85 - Step 5: Solve for x
x = 8,316,163,627.85/88,362.16 - Step 6: Final answer
x = 94,114.54
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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.