Finding the Fourth Proportional to 131,495.70, 197,243.55 and 109,625.70
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Solution
The fourth proportional to 131,495.70, 197,243.55 and 109,625.70 is: 164,438.55
Step by Step Solution
- Step 1: Write the proportion equation
131,495.70 : 197,243.55 = 109,625.70 : x - Step 2: Convert to fraction form
131,495.70/197,243.55 = 109,625.70/x - Step 3: Cross multiply
131,495.70x = 197,243.55 × 109,625.70 - Step 4: Simplify right side
131,495.70x = 21,622,962,239.24 - Step 5: Solve for x
x = 21,622,962,239.24/131,495.70 - Step 6: Final answer
x = 164,438.55
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1.5x scale
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.