Finding the Fourth Proportional to 122,472.07, 168,998.40 and 68,762.99
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Solution
The fourth proportional to 122,472.07, 168,998.40 and 68,762.99 is: 94,885.60
Step by Step Solution
- Step 1: Write the proportion equation
122,472.07 : 168,998.40 = 68,762.99 : x - Step 2: Convert to fraction form
122,472.07/168,998.40 = 68,762.99/x - Step 3: Cross multiply
122,472.07x = 168,998.40 × 68,762.99 - Step 4: Simplify right side
122,472.07x = 11,620,835,711.71 - Step 5: Solve for x
x = 11,620,835,711.71/122,472.07 - Step 6: Final answer
x = 94,885.60
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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.