Finding the Fourth Proportional to 112,701.25, 155,527.73 and 62,403.49
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Solution
The fourth proportional to 112,701.25, 155,527.73 and 62,403.49 is: 86,116.82
Step by Step Solution
- Step 1: Write the proportion equation
112,701.25 : 155,527.73 = 62,403.49 : x - Step 2: Convert to fraction form
112,701.25/155,527.73 = 62,403.49/x - Step 3: Cross multiply
112,701.25x = 155,527.73 × 62,403.49 - Step 4: Simplify right side
112,701.25x = 9,705,473,143.78 - Step 5: Solve for x
x = 9,705,473,143.78/112,701.25 - Step 6: Final answer
x = 86,116.82
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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.