Finding the Fourth Proportional to 114,139.44, 157,474.08 and 66,353.76
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Solution
The fourth proportional to 114,139.44, 157,474.08 and 66,353.76 is: 91,545.90
Step by Step Solution
- Step 1: Write the proportion equation
114,139.44 : 157,474.08 = 66,353.76 : x - Step 2: Convert to fraction form
114,139.44/157,474.08 = 66,353.76/x - Step 3: Cross multiply
114,139.44x = 157,474.08 × 66,353.76 - Step 4: Simplify right side
114,139.44x = 10,448,997,310.54 - Step 5: Solve for x
x = 10,448,997,310.54/114,139.44 - Step 6: Final answer
x = 91,545.90
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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.