Finding the Fourth Proportional to 135,165.97, 186,521.02 and 74,731.87
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Solution
The fourth proportional to 135,165.97, 186,521.02 and 74,731.87 is: 103,125.55
Step by Step Solution
- Step 1: Write the proportion equation
135,165.97 : 186,521.02 = 74,731.87 : x - Step 2: Convert to fraction form
135,165.97/186,521.02 = 74,731.87/x - Step 3: Cross multiply
135,165.97x = 186,521.02 × 74,731.87 - Step 4: Simplify right side
135,165.97x = 13,939,064,618.91 - Step 5: Solve for x
x = 13,939,064,618.91/135,165.97 - Step 6: Final answer
x = 103,125.55
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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.