Finding the Fourth Proportional to 153,737.70, 212,163.30 and 89,202.06
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Solution
The fourth proportional to 153,737.70, 212,163.30 and 89,202.06 is: 123,101.90
Step by Step Solution
- Step 1: Write the proportion equation
153,737.70 : 212,163.30 = 89,202.06 : x - Step 2: Convert to fraction form
153,737.70/212,163.30 = 89,202.06/x - Step 3: Cross multiply
153,737.70x = 212,163.30 × 89,202.06 - Step 4: Simplify right side
153,737.70x = 18,925,403,416.40 - Step 5: Solve for x
x = 18,925,403,416.40/153,737.70 - Step 6: Final answer
x = 123,101.90
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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.