Finding the Fourth Proportional to 137,358.44, 189,552.58 and 76,928.84
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Solution
The fourth proportional to 137,358.44, 189,552.58 and 76,928.84 is: 106,160.64
Step by Step Solution
- Step 1: Write the proportion equation
137,358.44 : 189,552.58 = 76,928.84 : x - Step 2: Convert to fraction form
137,358.44/189,552.58 = 76,928.84/x - Step 3: Cross multiply
137,358.44x = 189,552.58 × 76,928.84 - Step 4: Simplify right side
137,358.44x = 14,582,060,098.41 - Step 5: Solve for x
x = 14,582,060,098.41/137,358.44 - Step 6: Final answer
x = 106,160.64
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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.