Finding the Fourth Proportional to 121,403.70, 182,105.55 and 38,297.70
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Solution
The fourth proportional to 121,403.70, 182,105.55 and 38,297.70 is: 57,446.55
Step by Step Solution
- Step 1: Write the proportion equation
121,403.70 : 182,105.55 = 38,297.70 : x - Step 2: Convert to fraction form
121,403.70/182,105.55 = 38,297.70/x - Step 3: Cross multiply
121,403.70x = 182,105.55 × 38,297.70 - Step 4: Simplify right side
121,403.70x = 6,974,223,722.24 - Step 5: Solve for x
x = 6,974,223,722.24/121,403.70 - Step 6: Final answer
x = 57,446.55
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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.