Finding the Fourth Proportional to 189,805.53, 261,921.35 and 104,917.13
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Solution
The fourth proportional to 189,805.53, 261,921.35 and 104,917.13 is: 144,779.95
Step by Step Solution
- Step 1: Write the proportion equation
189,805.53 : 261,921.35 = 104,917.13 : x - Step 2: Convert to fraction form
189,805.53/261,921.35 = 104,917.13/x - Step 3: Cross multiply
189,805.53x = 261,921.35 × 104,917.13 - Step 4: Simplify right side
189,805.53x = 27,480,035,280.41 - Step 5: Solve for x
x = 27,480,035,280.41/189,805.53 - Step 6: Final answer
x = 144,779.95
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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.