Finding the Fourth Proportional to 124,806.41, 172,232.94 and 68,217.79
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Solution
The fourth proportional to 124,806.41, 172,232.94 and 68,217.79 is: 94,140.59
Step by Step Solution
- Step 1: Write the proportion equation
124,806.41 : 172,232.94 = 68,217.79 : x - Step 2: Convert to fraction form
124,806.41/172,232.94 = 68,217.79/x - Step 3: Cross multiply
124,806.41x = 172,232.94 × 68,217.79 - Step 4: Simplify right side
124,806.41x = 11,749,349,329.75 - Step 5: Solve for x
x = 11,749,349,329.75/124,806.41 - Step 6: Final answer
x = 94,140.59
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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.