Finding the Fourth Proportional to 161,869.17, 242,912.84 and 56,689.05
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Solution
The fourth proportional to 161,869.17, 242,912.84 and 56,689.05 is: 85,071.78
Step by Step Solution
- Step 1: Write the proportion equation
161,869.17 : 242,912.84 = 56,689.05 : x - Step 2: Convert to fraction form
161,869.17/242,912.84 = 56,689.05/x - Step 3: Cross multiply
161,869.17x = 242,912.84 × 56,689.05 - Step 4: Simplify right side
161,869.17x = 13,770,498,132.40 - Step 5: Solve for x
x = 13,770,498,132.40/161,869.17 - Step 6: Final answer
x = 85,071.78
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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.