Finding the Third Proportional to 72,478.50 and 115,305.75
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Solution
The third proportional to 72,478.50 and 115,305.75 is: 183,439.45
Step by Step Solution
- Step 1: Write the proportion equation
72,478.50 : 115,305.75 = 115,305.75 : x - Step 2: Convert to fraction form
72,478.50/115,305.75 = 115,305.75/x - Step 3: Cross multiply
72,478.50x = 115,305.75 × 115,305.75 - Step 4: Simplify right side
72,478.50x = 13,295,415,983.06 - Step 5: Solve for x
x = 13,295,415,983.06/72,478.50 - Step 6: Final answer
x = 183,439.45
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.