Finding the Fourth Proportional to 112,750.31, 169,139.36 and 36,847.05
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Solution
The fourth proportional to 112,750.31, 169,139.36 and 36,847.05 is: 55,275.12
Step by Step Solution
- Step 1: Write the proportion equation
112,750.31 : 169,139.36 = 36,847.05 : x - Step 2: Convert to fraction form
112,750.31/169,139.36 = 36,847.05/x - Step 3: Cross multiply
112,750.31x = 169,139.36 × 36,847.05 - Step 4: Simplify right side
112,750.31x = 6,232,286,270.65 - Step 5: Solve for x
x = 6,232,286,270.65/112,750.31 - Step 6: Final answer
x = 55,275.12
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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.