Finding the Fourth Proportional to 126,357.78, 174,373.68 and 69,769.14
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Solution
The fourth proportional to 126,357.78, 174,373.68 and 69,769.14 is: 96,281.38
Step by Step Solution
- Step 1: Write the proportion equation
126,357.78 : 174,373.68 = 69,769.14 : x - Step 2: Convert to fraction form
126,357.78/174,373.68 = 69,769.14/x - Step 3: Cross multiply
126,357.78x = 174,373.68 × 69,769.14 - Step 4: Simplify right side
126,357.78x = 12,165,901,692.24 - Step 5: Solve for x
x = 12,165,901,692.24/126,357.78 - Step 6: Final answer
x = 96,281.38
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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.