Finding the Fourth Proportional to 132,386.99, 198,468.87 and 57,450.68
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Solution
The fourth proportional to 132,386.99, 198,468.87 and 57,450.68 is: 86,127.59
Step by Step Solution
- Step 1: Write the proportion equation
132,386.99 : 198,468.87 = 57,450.68 : x - Step 2: Convert to fraction form
132,386.99/198,468.87 = 57,450.68/x - Step 3: Cross multiply
132,386.99x = 198,468.87 × 57,450.68 - Step 4: Simplify right side
132,386.99x = 11,402,171,432.61 - Step 5: Solve for x
x = 11,402,171,432.61/132,386.99 - Step 6: Final answer
x = 86,127.59
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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.