Finding the Fourth Proportional to 129,420.06, 194,162.28 and 102,866.23
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Solution
The fourth proportional to 129,420.06, 194,162.28 and 102,866.23 is: 154,324.94
Step by Step Solution
- Step 1: Write the proportion equation
129,420.06 : 194,162.28 = 102,866.23 : x - Step 2: Convert to fraction form
129,420.06/194,162.28 = 102,866.23/x - Step 3: Cross multiply
129,420.06x = 194,162.28 × 102,866.23 - Step 4: Simplify right side
129,420.06x = 19,972,742,187.38 - Step 5: Solve for x
x = 19,972,742,187.38/129,420.06 - Step 6: Final answer
x = 154,324.94
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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.