Finding the Third Proportional to 103,259.81 and 138,963.09
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Solution
The third proportional to 103,259.81 and 138,963.09 is: 187,011.20
Step by Step Solution
- Step 1: Write the proportion equation
103,259.81 : 138,963.09 = 138,963.09 : x - Step 2: Convert to fraction form
103,259.81/138,963.09 = 138,963.09/x - Step 3: Cross multiply
103,259.81x = 138,963.09 × 138,963.09 - Step 4: Simplify right side
103,259.81x = 19,310,741,424.57 - Step 5: Solve for x
x = 19,310,741,424.57/103,259.81 - Step 6: Final answer
x = 187,011.20
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These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.