Finding the Fourth Proportional to 122,749.44, 168,660.12 and 97,555.20
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Solution
The fourth proportional to 122,749.44, 168,660.12 and 97,555.20 is: 134,042.74
Step by Step Solution
- Step 1: Write the proportion equation
122,749.44 : 168,660.12 = 97,555.20 : x - Step 2: Convert to fraction form
122,749.44/168,660.12 = 97,555.20/x - Step 3: Cross multiply
122,749.44x = 168,660.12 × 97,555.20 - Step 4: Simplify right side
122,749.44x = 16,453,671,738.62 - Step 5: Solve for x
x = 16,453,671,738.62/122,749.44 - Step 6: Final answer
x = 134,042.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.