Finding the Fourth Proportional to 132,409.63, 198,614.54 and 38,980.99
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Solution
The fourth proportional to 132,409.63, 198,614.54 and 38,980.99 is: 58,471.51
Step by Step Solution
- Step 1: Write the proportion equation
132,409.63 : 198,614.54 = 38,980.99 : x - Step 2: Convert to fraction form
132,409.63/198,614.54 = 38,980.99/x - Step 3: Cross multiply
132,409.63x = 198,614.54 × 38,980.99 - Step 4: Simplify right side
132,409.63x = 7,742,191,397.59 - Step 5: Solve for x
x = 7,742,191,397.59/132,409.63 - Step 6: Final answer
x = 58,471.51
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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.