Finding the Fourth Proportional to 113,913.84, 157,201.26 and 66,170.42
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Solution
The fourth proportional to 113,913.84, 157,201.26 and 66,170.42 is: 91,315.27
Step by Step Solution
- Step 1: Write the proportion equation
113,913.84 : 157,201.26 = 66,170.42 : x - Step 2: Convert to fraction form
113,913.84/157,201.26 = 66,170.42/x - Step 3: Cross multiply
113,913.84x = 157,201.26 × 66,170.42 - Step 4: Simplify right side
113,913.84x = 10,402,072,954.09 - Step 5: Solve for x
x = 10,402,072,954.09/113,913.84 - Step 6: Final answer
x = 91,315.27
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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.