Finding the Fourth Proportional to 137,119.44, 189,216.96 and 75,862.08
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Solution
The fourth proportional to 137,119.44, 189,216.96 and 75,862.08 is: 104,685.32
Step by Step Solution
- Step 1: Write the proportion equation
137,119.44 : 189,216.96 = 75,862.08 : x - Step 2: Convert to fraction form
137,119.44/189,216.96 = 75,862.08/x - Step 3: Cross multiply
137,119.44x = 189,216.96 × 75,862.08 - Step 4: Simplify right side
137,119.44x = 14,354,392,156.88 - Step 5: Solve for x
x = 14,354,392,156.88/137,119.44 - Step 6: Final answer
x = 104,685.32
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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.