Finding the Fourth Proportional to 124,865.40, 172,294.92 and 71,152.68
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Solution
The fourth proportional to 124,865.40, 172,294.92 and 71,152.68 is: 98,179.68
Step by Step Solution
- Step 1: Write the proportion equation
124,865.40 : 172,294.92 = 71,152.68 : x - Step 2: Convert to fraction form
124,865.40/172,294.92 = 71,152.68/x - Step 3: Cross multiply
124,865.40x = 172,294.92 × 71,152.68 - Step 4: Simplify right side
124,865.40x = 12,259,245,308.39 - Step 5: Solve for x
x = 12,259,245,308.39/124,865.40 - Step 6: Final answer
x = 98,179.68
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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.