Finding the Fourth Proportional to 106,657.84, 159,991.62 and 27,780.04
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Solution
The fourth proportional to 106,657.84, 159,991.62 and 27,780.04 is: 41,671.33
Step by Step Solution
- Step 1: Write the proportion equation
106,657.84 : 159,991.62 = 27,780.04 : x - Step 2: Convert to fraction form
106,657.84/159,991.62 = 27,780.04/x - Step 3: Cross multiply
106,657.84x = 159,991.62 × 27,780.04 - Step 4: Simplify right side
106,657.84x = 4,444,573,603.26 - Step 5: Solve for x
x = 4,444,573,603.26/106,657.84 - Step 6: Final answer
x = 41,671.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.