Finding the Fourth Proportional to 135,901.30, 187,637.63 and 84,936.94
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Solution
The fourth proportional to 135,901.30, 187,637.63 and 84,936.94 is: 117,271.62
Step by Step Solution
- Step 1: Write the proportion equation
135,901.30 : 187,637.63 = 84,936.94 : x - Step 2: Convert to fraction form
135,901.30/187,637.63 = 84,936.94/x - Step 3: Cross multiply
135,901.30x = 187,637.63 × 84,936.94 - Step 4: Simplify right side
135,901.30x = 15,937,366,121.05 - Step 5: Solve for x
x = 15,937,366,121.05/135,901.30 - Step 6: Final answer
x = 117,271.62
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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.