Finding the Fourth Proportional to 122,910.60, 169,614.74 and 69,195.44
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Solution
The fourth proportional to 122,910.60, 169,614.74 and 69,195.44 is: 95,488.64
Step by Step Solution
- Step 1: Write the proportion equation
122,910.60 : 169,614.74 = 69,195.44 : x - Step 2: Convert to fraction form
122,910.60/169,614.74 = 69,195.44/x - Step 3: Cross multiply
122,910.60x = 169,614.74 × 69,195.44 - Step 4: Simplify right side
122,910.60x = 11,736,566,564.79 - Step 5: Solve for x
x = 11,736,566,564.79/122,910.60 - Step 6: Final answer
x = 95,488.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.