Finding the Fourth Proportional to 124,735.92, 172,139.44 and 68,146.08
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Solution
The fourth proportional to 124,735.92, 172,139.44 and 68,146.08 is: 94,043.70
Step by Step Solution
- Step 1: Write the proportion equation
124,735.92 : 172,139.44 = 68,146.08 : x - Step 2: Convert to fraction form
124,735.92/172,139.44 = 68,146.08/x - Step 3: Cross multiply
124,735.92x = 172,139.44 × 68,146.08 - Step 4: Simplify right side
124,735.92x = 11,730,628,049.40 - Step 5: Solve for x
x = 11,730,628,049.40/124,735.92 - Step 6: Final answer
x = 94,043.70
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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.