Finding the Fourth Proportional to 113,490.99, 156,611.48 and 63,186.75
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Solution
The fourth proportional to 113,490.99, 156,611.48 and 63,186.75 is: 87,194.32
Step by Step Solution
- Step 1: Write the proportion equation
113,490.99 : 156,611.48 = 63,186.75 : x - Step 2: Convert to fraction form
113,490.99/156,611.48 = 63,186.75/x - Step 3: Cross multiply
113,490.99x = 156,611.48 × 63,186.75 - Step 4: Simplify right side
113,490.99x = 9,895,770,117.96 - Step 5: Solve for x
x = 9,895,770,117.96/113,490.99 - Step 6: Final answer
x = 87,194.32
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1.5x scale
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.