Finding the Fourth Proportional to 166,625.12, 229,941.71 and 90,143.99
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Solution
The fourth proportional to 166,625.12, 229,941.71 and 90,143.99 is: 124,398.18
Step by Step Solution
- Step 1: Write the proportion equation
166,625.12 : 229,941.71 = 90,143.99 : x - Step 2: Convert to fraction form
166,625.12/229,941.71 = 90,143.99/x - Step 3: Cross multiply
166,625.12x = 229,941.71 × 90,143.99 - Step 4: Simplify right side
166,625.12x = 20,727,862,806.72 - Step 5: Solve for x
x = 20,727,862,806.72/166,625.12 - Step 6: Final answer
x = 124,398.18
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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.