Finding the Fourth Proportional to 124,709.79, 172,093.08 and 68,110.23
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Solution
The fourth proportional to 124,709.79, 172,093.08 and 68,110.23 is: 93,988.61
Step by Step Solution
- Step 1: Write the proportion equation
124,709.79 : 172,093.08 = 68,110.23 : x - Step 2: Convert to fraction form
124,709.79/172,093.08 = 68,110.23/x - Step 3: Cross multiply
124,709.79x = 172,093.08 × 68,110.23 - Step 4: Simplify right side
124,709.79x = 11,721,299,260.21 - Step 5: Solve for x
x = 11,721,299,260.21/124,709.79 - Step 6: Final answer
x = 93,988.61
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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.