Finding the Fourth Proportional to 108,718.38, 149,997.33 and 62,772.03
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Solution
The fourth proportional to 108,718.38, 149,997.33 and 62,772.03 is: 86,605.75
Step by Step Solution
- Step 1: Write the proportion equation
108,718.38 : 149,997.33 = 62,772.03 : x - Step 2: Convert to fraction form
108,718.38/149,997.33 = 62,772.03/x - Step 3: Cross multiply
108,718.38x = 149,997.33 × 62,772.03 - Step 4: Simplify right side
108,718.38x = 9,415,636,898.68 - Step 5: Solve for x
x = 9,415,636,898.68/108,718.38 - Step 6: Final answer
x = 86,605.75
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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.