Finding the Fourth Proportional to 125,277.24, 172,881.36 and 68,688.48
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Solution
The fourth proportional to 125,277.24, 172,881.36 and 68,688.48 is: 94,789.43
Step by Step Solution
- Step 1: Write the proportion equation
125,277.24 : 172,881.36 = 68,688.48 : x - Step 2: Convert to fraction form
125,277.24/172,881.36 = 68,688.48/x - Step 3: Cross multiply
125,277.24x = 172,881.36 × 68,688.48 - Step 4: Simplify right side
125,277.24x = 11,874,957,838.73 - Step 5: Solve for x
x = 11,874,957,838.73/125,277.24 - Step 6: Final answer
x = 94,789.43
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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.