Finding the Fourth Proportional to 157,568.45, 217,439.08 and 93,905.09
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Solution
The fourth proportional to 157,568.45, 217,439.08 and 93,905.09 is: 129,585.82
Step by Step Solution
- Step 1: Write the proportion equation
157,568.45 : 217,439.08 = 93,905.09 : x - Step 2: Convert to fraction form
157,568.45/217,439.08 = 93,905.09/x - Step 3: Cross multiply
157,568.45x = 217,439.08 × 93,905.09 - Step 4: Simplify right side
157,568.45x = 20,418,636,376.92 - Step 5: Solve for x
x = 20,418,636,376.92/157,568.45 - Step 6: Final answer
x = 129,585.82
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1.5x scale
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.