Finding the Fourth Proportional to 189,756.09, 261,853.17 and 104,868.09
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Solution
The fourth proportional to 189,756.09, 261,853.17 and 104,868.09 is: 144,712.31
Step by Step Solution
- Step 1: Write the proportion equation
189,756.09 : 261,853.17 = 104,868.09 : x - Step 2: Convert to fraction form
189,756.09/261,853.17 = 104,868.09/x - Step 3: Cross multiply
189,756.09x = 261,853.17 × 104,868.09 - Step 4: Simplify right side
189,756.09x = 27,460,041,798.35 - Step 5: Solve for x
x = 27,460,041,798.35/189,756.09 - Step 6: Final answer
x = 144,712.31
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1.5x scale
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.