Finding the Fourth Proportional to 172,340.16, 258,403.68 and 67,035.84
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Solution
The fourth proportional to 172,340.16, 258,403.68 and 67,035.84 is: 100,512.31
Step by Step Solution
- Step 1: Write the proportion equation
172,340.16 : 258,403.68 = 67,035.84 : x - Step 2: Convert to fraction form
172,340.16/258,403.68 = 67,035.84/x - Step 3: Cross multiply
172,340.16x = 258,403.68 × 67,035.84 - Step 4: Simplify right side
172,340.16x = 17,322,307,747.89 - Step 5: Solve for x
x = 17,322,307,747.89/172,340.16 - Step 6: Final answer
x = 100,512.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.