Finding the Fourth Proportional to 189,118.08, 260,964.26 and 112,621.96
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Solution
The fourth proportional to 189,118.08, 260,964.26 and 112,621.96 is: 155,407.17
Step by Step Solution
- Step 1: Write the proportion equation
189,118.08 : 260,964.26 = 112,621.96 : x - Step 2: Convert to fraction form
189,118.08/260,964.26 = 112,621.96/x - Step 3: Cross multiply
189,118.08x = 260,964.26 × 112,621.96 - Step 4: Simplify right side
189,118.08x = 29,390,306,451.15 - Step 5: Solve for x
x = 29,390,306,451.15/189,118.08 - Step 6: Final answer
x = 155,407.17
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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.