Finding the Fourth Proportional to 121,750.36, 168,067.24 and 74,018.94
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Solution
The fourth proportional to 121,750.36, 168,067.24 and 74,018.94 is: 102,177.59
Step by Step Solution
- Step 1: Write the proportion equation
121,750.36 : 168,067.24 = 74,018.94 : x - Step 2: Convert to fraction form
121,750.36/168,067.24 = 74,018.94/x - Step 3: Cross multiply
121,750.36x = 168,067.24 × 74,018.94 - Step 4: Simplify right side
121,750.36x = 12,440,158,953.53 - Step 5: Solve for x
x = 12,440,158,953.53/121,750.36 - Step 6: Final answer
x = 102,177.59
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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.