Finding the Fourth Proportional to 134,905.19, 186,164.27 and 74,474.53
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Solution
The fourth proportional to 134,905.19, 186,164.27 and 74,474.53 is: 102,772.15
Step by Step Solution
- Step 1: Write the proportion equation
134,905.19 : 186,164.27 = 74,474.53 : x - Step 2: Convert to fraction form
134,905.19/186,164.27 = 74,474.53/x - Step 3: Cross multiply
134,905.19x = 186,164.27 × 74,474.53 - Step 4: Simplify right side
134,905.19x = 13,864,496,511.04 - Step 5: Solve for x
x = 13,864,496,511.04/134,905.19 - Step 6: Final answer
x = 102,772.15
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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.