Finding the Fourth Proportional to 115,652.52, 159,644.52 and 75,376.08
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Solution
The fourth proportional to 115,652.52, 159,644.52 and 75,376.08 is: 104,047.69
Step by Step Solution
- Step 1: Write the proportion equation
115,652.52 : 159,644.52 = 75,376.08 : x - Step 2: Convert to fraction form
115,652.52/159,644.52 = 75,376.08/x - Step 3: Cross multiply
115,652.52x = 159,644.52 × 75,376.08 - Step 4: Simplify right side
115,652.52x = 12,033,378,111.08 - Step 5: Solve for x
x = 12,033,378,111.08/115,652.52 - Step 6: Final answer
x = 104,047.69
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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.