Finding the Fourth Proportional to 122,812.40, 184,296.12 and 70,324.40
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Solution
The fourth proportional to 122,812.40, 184,296.12 and 70,324.40 is: 105,530.99
Step by Step Solution
- Step 1: Write the proportion equation
122,812.40 : 184,296.12 = 70,324.40 : x - Step 2: Convert to fraction form
122,812.40/184,296.12 = 70,324.40/x - Step 3: Cross multiply
122,812.40x = 184,296.12 × 70,324.40 - Step 4: Simplify right side
122,812.40x = 12,960,514,061.33 - Step 5: Solve for x
x = 12,960,514,061.33/122,812.40 - Step 6: Final answer
x = 105,530.99
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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.