Finding the Fourth Proportional to 106,412.19, 159,520.24 and 36,242.70
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Solution
The fourth proportional to 106,412.19, 159,520.24 and 36,242.70 is: 54,330.66
Step by Step Solution
- Step 1: Write the proportion equation
106,412.19 : 159,520.24 = 36,242.70 : x - Step 2: Convert to fraction form
106,412.19/159,520.24 = 36,242.70/x - Step 3: Cross multiply
106,412.19x = 159,520.24 × 36,242.70 - Step 4: Simplify right side
106,412.19x = 5,781,444,202.25 - Step 5: Solve for x
x = 5,781,444,202.25/106,412.19 - Step 6: Final answer
x = 54,330.66
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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.