Finding the Fourth Proportional to 189,702.52, 261,787.62 and 104,817.76
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Solution
The fourth proportional to 189,702.52, 261,787.62 and 104,817.76 is: 144,647.48
Step by Step Solution
- Step 1: Write the proportion equation
189,702.52 : 261,787.62 = 104,817.76 : x - Step 2: Convert to fraction form
189,702.52/261,787.62 = 104,817.76/x - Step 3: Cross multiply
189,702.52x = 261,787.62 × 104,817.76 - Step 4: Simplify right side
189,702.52x = 27,439,991,924.13 - Step 5: Solve for x
x = 27,439,991,924.13/189,702.52 - Step 6: Final answer
x = 144,647.48
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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.