Finding the Fourth Proportional to 122,526.60, 183,789.90 and 121,489.80
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Solution
The fourth proportional to 122,526.60, 183,789.90 and 121,489.80 is: 182,234.70
Step by Step Solution
- Step 1: Write the proportion equation
122,526.60 : 183,789.90 = 121,489.80 : x - Step 2: Convert to fraction form
122,526.60/183,789.90 = 121,489.80/x - Step 3: Cross multiply
122,526.60x = 183,789.90 × 121,489.80 - Step 4: Simplify right side
122,526.60x = 22,328,598,193.02 - Step 5: Solve for x
x = 22,328,598,193.02/122,526.60 - Step 6: Final answer
x = 182,234.70
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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.