Finding the Fourth Proportional to 99,963.36, 149,947.68 and 43,774.44
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Solution
The fourth proportional to 99,963.36, 149,947.68 and 43,774.44 is: 65,662.82
Step by Step Solution
- Step 1: Write the proportion equation
99,963.36 : 149,947.68 = 43,774.44 : x - Step 2: Convert to fraction form
99,963.36/149,947.68 = 43,774.44/x - Step 3: Cross multiply
99,963.36x = 149,947.68 × 43,774.44 - Step 4: Simplify right side
99,963.36x = 6,563,875,721.30 - Step 5: Solve for x
x = 6,563,875,721.30/99,963.36 - Step 6: Final answer
x = 65,662.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.