Finding the Fourth Proportional to 135,929.07, 187,584.43 and 74,677.84
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Solution
The fourth proportional to 135,929.07, 187,584.43 and 74,677.84 is: 103,056.68
Step by Step Solution
- Step 1: Write the proportion equation
135,929.07 : 187,584.43 = 74,677.84 : x - Step 2: Convert to fraction form
135,929.07/187,584.43 = 74,677.84/x - Step 3: Cross multiply
135,929.07x = 187,584.43 × 74,677.84 - Step 4: Simplify right side
135,929.07x = 14,008,399,112.11 - Step 5: Solve for x
x = 14,008,399,112.11/135,929.07 - Step 6: Final answer
x = 103,056.68
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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.