Finding the Fourth Proportional to 129,973.26, 179,363.08 and 73,388.28
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Solution
The fourth proportional to 129,973.26, 179,363.08 and 73,388.28 is: 101,275.82
Step by Step Solution
- Step 1: Write the proportion equation
129,973.26 : 179,363.08 = 73,388.28 : x - Step 2: Convert to fraction form
129,973.26/179,363.08 = 73,388.28/x - Step 3: Cross multiply
129,973.26x = 179,363.08 × 73,388.28 - Step 4: Simplify right side
129,973.26x = 13,163,147,936.70 - Step 5: Solve for x
x = 13,163,147,936.70/129,973.26 - Step 6: Final answer
x = 101,275.82
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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.