Finding the Fourth Proportional to 147,406.48, 203,395.44 and 86,972.56
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Solution
The fourth proportional to 147,406.48, 203,395.44 and 86,972.56 is: 120,007.09
Step by Step Solution
- Step 1: Write the proportion equation
147,406.48 : 203,395.44 = 86,972.56 : x - Step 2: Convert to fraction form
147,406.48/203,395.44 = 86,972.56/x - Step 3: Cross multiply
147,406.48x = 203,395.44 × 86,972.56 - Step 4: Simplify right side
147,406.48x = 17,689,822,109.13 - Step 5: Solve for x
x = 17,689,822,109.13/147,406.48 - Step 6: Final answer
x = 120,007.09
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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.