Finding the Third Proportional to 99,780.75 and 157,980.75
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Solution
The third proportional to 99,780.75 and 157,980.75 is: 250,127.58
Step by Step Solution
- Step 1: Write the proportion equation
99,780.75 : 157,980.75 = 157,980.75 : x - Step 2: Convert to fraction form
99,780.75/157,980.75 = 157,980.75/x - Step 3: Cross multiply
99,780.75x = 157,980.75 × 157,980.75 - Step 4: Simplify right side
99,780.75x = 24,957,917,370.56 - Step 5: Solve for x
x = 24,957,917,370.56/99,780.75 - Step 6: Final answer
x = 250,127.58
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Why These Related Problems?
These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.