Finding the Fourth Proportional to 127,783.70, 176,342.71 and 70,425.09
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Solution
The fourth proportional to 127,783.70, 176,342.71 and 70,425.09 is: 97,187.29
Step by Step Solution
- Step 1: Write the proportion equation
127,783.70 : 176,342.71 = 70,425.09 : x - Step 2: Convert to fraction form
127,783.70/176,342.71 = 70,425.09/x - Step 3: Cross multiply
127,783.70x = 176,342.71 × 70,425.09 - Step 4: Simplify right side
127,783.70x = 12,418,951,222.59 - Step 5: Solve for x
x = 12,418,951,222.59/127,783.70 - Step 6: Final answer
x = 97,187.29
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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.