Finding the Third Proportional to 128,986.75 and 195,430.75
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Solution
The third proportional to 128,986.75 and 195,430.75 is: 296,101.56
Step by Step Solution
- Step 1: Write the proportion equation
128,986.75 : 195,430.75 = 195,430.75 : x - Step 2: Convert to fraction form
128,986.75/195,430.75 = 195,430.75/x - Step 3: Cross multiply
128,986.75x = 195,430.75 × 195,430.75 - Step 4: Simplify right side
128,986.75x = 38,193,178,045.56 - Step 5: Solve for x
x = 38,193,178,045.56/128,986.75 - Step 6: Final answer
x = 296,101.56
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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.