Finding the Fourth Proportional to 124,718.06, 172,114.71 and 68,133.08
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Solution
The fourth proportional to 124,718.06, 172,114.71 and 68,133.08 is: 94,025.72
Step by Step Solution
- Step 1: Write the proportion equation
124,718.06 : 172,114.71 = 68,133.08 : x - Step 2: Convert to fraction form
124,718.06/172,114.71 = 68,133.08/x - Step 3: Cross multiply
124,718.06x = 172,114.71 × 68,133.08 - Step 4: Simplify right side
124,718.06x = 11,726,705,735.89 - Step 5: Solve for x
x = 11,726,705,735.89/124,718.06 - Step 6: Final answer
x = 94,025.72
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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.