Finding the Fourth Proportional to 188,983.68, 260,905.92 and 125,407.68
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Solution
The fourth proportional to 188,983.68, 260,905.92 and 125,407.68 is: 173,134.56
Step by Step Solution
- Step 1: Write the proportion equation
188,983.68 : 260,905.92 = 125,407.68 : x - Step 2: Convert to fraction form
188,983.68/260,905.92 = 125,407.68/x - Step 3: Cross multiply
188,983.68x = 260,905.92 × 125,407.68 - Step 4: Simplify right side
188,983.68x = 32,719,606,125.47 - Step 5: Solve for x
x = 32,719,606,125.47/188,983.68 - Step 6: Final answer
x = 173,134.56
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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.