Finding the Fourth Proportional to 124,974.75, 172,465.17 and 68,386.14
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Solution
The fourth proportional to 124,974.75, 172,465.17 and 68,386.14 is: 94,372.88
Step by Step Solution
- Step 1: Write the proportion equation
124,974.75 : 172,465.17 = 68,386.14 : x - Step 2: Convert to fraction form
124,974.75/172,465.17 = 68,386.14/x - Step 3: Cross multiply
124,974.75x = 172,465.17 × 68,386.14 - Step 4: Simplify right side
124,974.75x = 11,794,227,260.74 - Step 5: Solve for x
x = 11,794,227,260.74/124,974.75 - Step 6: Final answer
x = 94,372.88
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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.