Finding the Fourth Proportional to 121,927.88, 168,253.68 and 68,202.52
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Solution
The fourth proportional to 121,927.88, 168,253.68 and 68,202.52 is: 94,115.68
Step by Step Solution
- Step 1: Write the proportion equation
121,927.88 : 168,253.68 = 68,202.52 : x - Step 2: Convert to fraction form
121,927.88/168,253.68 = 68,202.52/x - Step 3: Cross multiply
121,927.88x = 168,253.68 × 68,202.52 - Step 4: Simplify right side
121,927.88x = 11,475,324,975.27 - Step 5: Solve for x
x = 11,475,324,975.27/121,927.88 - Step 6: Final answer
x = 94,115.68
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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.