Finding the Fourth Proportional to 189,720.09, 261,811.44 and 104,835.33
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Solution
The fourth proportional to 189,720.09, 261,811.44 and 104,835.33 is: 144,671.49
Step by Step Solution
- Step 1: Write the proportion equation
189,720.09 : 261,811.44 = 104,835.33 : x - Step 2: Convert to fraction form
189,720.09/261,811.44 = 104,835.33/x - Step 3: Cross multiply
189,720.09x = 261,811.44 × 104,835.33 - Step 4: Simplify right side
189,720.09x = 27,447,088,710.18 - Step 5: Solve for x
x = 27,447,088,710.18/189,720.09 - Step 6: Final answer
x = 144,671.49
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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.