Finding the Fourth Proportional to 148,669.26, 205,173.84 and 84,138.81
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Solution
The fourth proportional to 148,669.26, 205,173.84 and 84,138.81 is: 116,117.37
Step by Step Solution
- Step 1: Write the proportion equation
148,669.26 : 205,173.84 = 84,138.81 : x - Step 2: Convert to fraction form
148,669.26/205,173.84 = 84,138.81/x - Step 3: Cross multiply
148,669.26x = 205,173.84 × 84,138.81 - Step 4: Simplify right side
148,669.26x = 17,263,082,740.73 - Step 5: Solve for x
x = 17,263,082,740.73/148,669.26 - Step 6: Final answer
x = 116,117.37
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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.