Finding the Fourth Proportional to 137,937.70, 206,906.55 and 110,289.70
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Solution
The fourth proportional to 137,937.70, 206,906.55 and 110,289.70 is: 165,434.55
Step by Step Solution
- Step 1: Write the proportion equation
137,937.70 : 206,906.55 = 110,289.70 : x - Step 2: Convert to fraction form
137,937.70/206,906.55 = 110,289.70/x - Step 3: Cross multiply
137,937.70x = 206,906.55 × 110,289.70 - Step 4: Simplify right side
137,937.70x = 22,819,661,327.54 - Step 5: Solve for x
x = 22,819,661,327.54/137,937.70 - Step 6: Final answer
x = 165,434.55
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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.