Finding the Fourth Proportional to 125,803.11, 188,632.31 and 75,252.63
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Solution
The fourth proportional to 125,803.11, 188,632.31 and 75,252.63 is: 112,835.66
Step by Step Solution
- Step 1: Write the proportion equation
125,803.11 : 188,632.31 = 75,252.63 : x - Step 2: Convert to fraction form
125,803.11/188,632.31 = 75,252.63/x - Step 3: Cross multiply
125,803.11x = 188,632.31 × 75,252.63 - Step 4: Simplify right side
125,803.11x = 14,195,077,054.21 - Step 5: Solve for x
x = 14,195,077,054.21/125,803.11 - Step 6: Final answer
x = 112,835.66
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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.