Finding the Fourth Proportional to 122,203.20, 182,104.65 and 118,189.62
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Solution
The fourth proportional to 122,203.20, 182,104.65 and 118,189.62 is: 176,123.70
Step by Step Solution
- Step 1: Write the proportion equation
122,203.20 : 182,104.65 = 118,189.62 : x - Step 2: Convert to fraction form
122,203.20/182,104.65 = 118,189.62/x - Step 3: Cross multiply
122,203.20x = 182,104.65 × 118,189.62 - Step 4: Simplify right side
122,203.20x = 21,522,879,383.73 - Step 5: Solve for x
x = 21,522,879,383.73/122,203.20 - Step 6: Final answer
x = 176,123.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.