Finding the Fourth Proportional to 135,219.18, 186,600.87 and 74,785.08
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Solution
The fourth proportional to 135,219.18, 186,600.87 and 74,785.08 is: 103,202.53
Step by Step Solution
- Step 1: Write the proportion equation
135,219.18 : 186,600.87 = 74,785.08 : x - Step 2: Convert to fraction form
135,219.18/186,600.87 = 74,785.08/x - Step 3: Cross multiply
135,219.18x = 186,600.87 × 74,785.08 - Step 4: Simplify right side
135,219.18x = 13,954,960,991.02 - Step 5: Solve for x
x = 13,954,960,991.02/135,219.18 - Step 6: Final answer
x = 103,202.53
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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.