Finding the Fourth Proportional to 135,156.59, 186,508.54 and 74,723.70
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Solution
The fourth proportional to 135,156.59, 186,508.54 and 74,723.70 is: 103,114.53
Step by Step Solution
- Step 1: Write the proportion equation
135,156.59 : 186,508.54 = 74,723.70 : x - Step 2: Convert to fraction form
135,156.59/186,508.54 = 74,723.70/x - Step 3: Cross multiply
135,156.59x = 186,508.54 × 74,723.70 - Step 4: Simplify right side
135,156.59x = 13,936,608,190.40 - Step 5: Solve for x
x = 13,936,608,190.40/135,156.59 - Step 6: Final answer
x = 103,114.53
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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.