Finding the Fourth Proportional to 113,912.18, 157,201.17 and 63,611.18
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Solution
The fourth proportional to 113,912.18, 157,201.17 and 63,611.18 is: 87,784.75
Step by Step Solution
- Step 1: Write the proportion equation
113,912.18 : 157,201.17 = 63,611.18 : x - Step 2: Convert to fraction form
113,912.18/157,201.17 = 63,611.18/x - Step 3: Cross multiply
113,912.18x = 157,201.17 × 63,611.18 - Step 4: Simplify right side
113,912.18x = 9,999,751,921.08 - Step 5: Solve for x
x = 9,999,751,921.08/113,912.18 - Step 6: Final answer
x = 87,784.75
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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.