Finding the Fourth Proportional to 122,043.19, 168,420.02 and 68,328.31
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Solution
The fourth proportional to 122,043.19, 168,420.02 and 68,328.31 is: 94,293.30
Step by Step Solution
- Step 1: Write the proportion equation
122,043.19 : 168,420.02 = 68,328.31 : x - Step 2: Convert to fraction form
122,043.19/168,420.02 = 68,328.31/x - Step 3: Cross multiply
122,043.19x = 168,420.02 × 68,328.31 - Step 4: Simplify right side
122,043.19x = 11,507,855,336.77 - Step 5: Solve for x
x = 11,507,855,336.77/122,043.19 - Step 6: Final answer
x = 94,293.30
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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.