Finding the Fourth Proportional to 134,901.41, 186,165.45 and 74,472.09
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Solution
The fourth proportional to 134,901.41, 186,165.45 and 74,472.09 is: 102,772.31
Step by Step Solution
- Step 1: Write the proportion equation
134,901.41 : 186,165.45 = 74,472.09 : x - Step 2: Convert to fraction form
134,901.41/186,165.45 = 74,472.09/x - Step 3: Cross multiply
134,901.41x = 186,165.45 × 74,472.09 - Step 4: Simplify right side
134,901.41x = 13,864,129,449.17 - Step 5: Solve for x
x = 13,864,129,449.17/134,901.41 - Step 6: Final answer
x = 102,772.31
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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.