Finding the Fourth Proportional to 141,214.12, 194,803.43 and 90,173.19
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Solution
The fourth proportional to 141,214.12, 194,803.43 and 90,173.19 is: 124,392.99
Step by Step Solution
- Step 1: Write the proportion equation
141,214.12 : 194,803.43 = 90,173.19 : x - Step 2: Convert to fraction form
141,214.12/194,803.43 = 90,173.19/x - Step 3: Cross multiply
141,214.12x = 194,803.43 × 90,173.19 - Step 4: Simplify right side
141,214.12x = 17,566,046,706.04 - Step 5: Solve for x
x = 17,566,046,706.04/141,214.12 - Step 6: Final answer
x = 124,392.99
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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.