Finding the Fourth Proportional to 141,753.12, 212,646.09 and 46,991.63
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Solution
The fourth proportional to 141,753.12, 212,646.09 and 46,991.63 is: 70,492.88
Step by Step Solution
- Step 1: Write the proportion equation
141,753.12 : 212,646.09 = 46,991.63 : x - Step 2: Convert to fraction form
141,753.12/212,646.09 = 46,991.63/x - Step 3: Cross multiply
141,753.12x = 212,646.09 × 46,991.63 - Step 4: Simplify right side
141,753.12x = 9,992,585,319.00 - Step 5: Solve for x
x = 9,992,585,319.00/141,753.12 - Step 6: Final answer
x = 70,492.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.