Finding the Fourth Proportional to 88,194.36, 121,708.85 and 47,908.14
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Solution
The fourth proportional to 88,194.36, 121,708.85 and 47,908.14 is: 66,113.58
Step by Step Solution
- Step 1: Write the proportion equation
88,194.36 : 121,708.85 = 47,908.14 : x - Step 2: Convert to fraction form
88,194.36/121,708.85 = 47,908.14/x - Step 3: Cross multiply
88,194.36x = 121,708.85 × 47,908.14 - Step 4: Simplify right side
88,194.36x = 5,830,844,625.04 - Step 5: Solve for x
x = 5,830,844,625.04/88,194.36 - Step 6: Final answer
x = 66,113.58
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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.