Finding the Fourth Proportional to 137,119.84, 189,277.26 and 122,753.68
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Solution
The fourth proportional to 137,119.84, 189,277.26 and 122,753.68 is: 169,446.52
Step by Step Solution
- Step 1: Write the proportion equation
137,119.84 : 189,277.26 = 122,753.68 : x - Step 2: Convert to fraction form
137,119.84/189,277.26 = 122,753.68/x - Step 3: Cross multiply
137,119.84x = 189,277.26 × 122,753.68 - Step 4: Simplify right side
137,119.84x = 23,234,479,271.80 - Step 5: Solve for x
x = 23,234,479,271.80/137,119.84 - Step 6: Final answer
x = 169,446.52
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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.