Finding the Fourth Proportional to 168,121.05, 232,000.07 and 91,638.46
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Solution
The fourth proportional to 168,121.05, 232,000.07 and 91,638.46 is: 126,457.28
Step by Step Solution
- Step 1: Write the proportion equation
168,121.05 : 232,000.07 = 91,638.46 : x - Step 2: Convert to fraction form
168,121.05/232,000.07 = 91,638.46/x - Step 3: Cross multiply
168,121.05x = 232,000.07 × 91,638.46 - Step 4: Simplify right side
168,121.05x = 21,260,130,134.47 - Step 5: Solve for x
x = 21,260,130,134.47/168,121.05 - Step 6: Final answer
x = 126,457.28
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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.