Finding the Fourth Proportional to 122,431.68, 183,681.81 and 43,553.88
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Solution
The fourth proportional to 122,431.68, 183,681.81 and 43,553.88 is: 65,343.02
Step by Step Solution
- Step 1: Write the proportion equation
122,431.68 : 183,681.81 = 43,553.88 : x - Step 2: Convert to fraction form
122,431.68/183,681.81 = 43,553.88/x - Step 3: Cross multiply
122,431.68x = 183,681.81 × 43,553.88 - Step 4: Simplify right side
122,431.68x = 8,000,055,510.92 - Step 5: Solve for x
x = 8,000,055,510.92/122,431.68 - Step 6: Final answer
x = 65,343.02
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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.