Finding the Fourth Proportional to 192,787.68, 289,097.61 and 91,615.08
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Solution
The fourth proportional to 192,787.68, 289,097.61 and 91,615.08 is: 137,382.74
Step by Step Solution
- Step 1: Write the proportion equation
192,787.68 : 289,097.61 = 91,615.08 : x - Step 2: Convert to fraction form
192,787.68/289,097.61 = 91,615.08/x - Step 3: Cross multiply
192,787.68x = 289,097.61 × 91,615.08 - Step 4: Simplify right side
192,787.68x = 26,485,700,667.96 - Step 5: Solve for x
x = 26,485,700,667.96/192,787.68 - Step 6: Final answer
x = 137,382.74
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1.5x scale
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.