Finding the Fourth Proportional to 156,961.13, 235,436.43 and 68,214.62
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Solution
The fourth proportional to 156,961.13, 235,436.43 and 68,214.62 is: 102,319.64
Step by Step Solution
- Step 1: Write the proportion equation
156,961.13 : 235,436.43 = 68,214.62 : x - Step 2: Convert to fraction form
156,961.13/235,436.43 = 68,214.62/x - Step 3: Cross multiply
156,961.13x = 235,436.43 × 68,214.62 - Step 4: Simplify right side
156,961.13x = 16,060,206,606.61 - Step 5: Solve for x
x = 16,060,206,606.61/156,961.13 - Step 6: Final answer
x = 102,319.64
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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.