Finding the Fourth Proportional to 113,881.79, 157,163.46 and 68,574.41
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Solution
The fourth proportional to 113,881.79, 157,163.46 and 68,574.41 is: 94,636.65
Step by Step Solution
- Step 1: Write the proportion equation
113,881.79 : 157,163.46 = 68,574.41 : x - Step 2: Convert to fraction form
113,881.79/157,163.46 = 68,574.41/x - Step 3: Cross multiply
113,881.79x = 157,163.46 × 68,574.41 - Step 4: Simplify right side
113,881.79x = 10,777,391,455.11 - Step 5: Solve for x
x = 10,777,391,455.11/113,881.79 - Step 6: Final answer
x = 94,636.65
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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.