Finding the Fourth Proportional to 88,188.08, 121,674.84 and 83,755.76
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Solution
The fourth proportional to 88,188.08, 121,674.84 and 83,755.76 is: 115,559.48
Step by Step Solution
- Step 1: Write the proportion equation
88,188.08 : 121,674.84 = 83,755.76 : x - Step 2: Convert to fraction form
88,188.08/121,674.84 = 83,755.76/x - Step 3: Cross multiply
88,188.08x = 121,674.84 × 83,755.76 - Step 4: Simplify right side
88,188.08x = 10,190,968,697.08 - Step 5: Solve for x
x = 10,190,968,697.08/88,188.08 - Step 6: Final answer
x = 115,559.48
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1.5x scale
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.