Finding the Fourth Proportional to 135,807.91, 187,406.06 and 75,375.63
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Solution
The fourth proportional to 135,807.91, 187,406.06 and 75,375.63 is: 104,013.45
Step by Step Solution
- Step 1: Write the proportion equation
135,807.91 : 187,406.06 = 75,375.63 : x - Step 2: Convert to fraction form
135,807.91/187,406.06 = 75,375.63/x - Step 3: Cross multiply
135,807.91x = 187,406.06 × 75,375.63 - Step 4: Simplify right side
135,807.91x = 14,125,849,461.44 - Step 5: Solve for x
x = 14,125,849,461.44/135,807.91 - Step 6: Final answer
x = 104,013.45
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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.