Finding the Fourth Proportional to 168,208.21, 232,129.07 and 92,759.41
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Solution
The fourth proportional to 168,208.21, 232,129.07 and 92,759.41 is: 128,008.95
Step by Step Solution
- Step 1: Write the proportion equation
168,208.21 : 232,129.07 = 92,759.41 : x - Step 2: Convert to fraction form
168,208.21/232,129.07 = 92,759.41/x - Step 3: Cross multiply
168,208.21x = 232,129.07 × 92,759.41 - Step 4: Simplify right side
168,208.21x = 21,532,155,577.05 - Step 5: Solve for x
x = 21,532,155,577.05/168,208.21 - Step 6: Final answer
x = 128,008.95
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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.