Finding the Fourth Proportional to 122,115.70, 183,205.95 and 43,221.70
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Solution
The fourth proportional to 122,115.70, 183,205.95 and 43,221.70 is: 64,844.02
Step by Step Solution
- Step 1: Write the proportion equation
122,115.70 : 183,205.95 = 43,221.70 : x - Step 2: Convert to fraction form
122,115.70/183,205.95 = 43,221.70/x - Step 3: Cross multiply
122,115.70x = 183,205.95 × 43,221.70 - Step 4: Simplify right side
122,115.70x = 7,918,472,609.12 - Step 5: Solve for x
x = 7,918,472,609.12/122,115.70 - Step 6: Final answer
x = 64,844.02
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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.