Finding the Fourth Proportional to 181,153.16, 249,979.80 and 100,580.68
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Solution
The fourth proportional to 181,153.16, 249,979.80 and 100,580.68 is: 138,794.92
Step by Step Solution
- Step 1: Write the proportion equation
181,153.16 : 249,979.80 = 100,580.68 : x - Step 2: Convert to fraction form
181,153.16/249,979.80 = 100,580.68/x - Step 3: Cross multiply
181,153.16x = 249,979.80 × 100,580.68 - Step 4: Simplify right side
181,153.16x = 25,143,138,270.26 - Step 5: Solve for x
x = 25,143,138,270.26/181,153.16 - Step 6: Final answer
x = 138,794.92
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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.