Finding the Fourth Proportional to 134,202.12, 201,187.98 and 74,989.32
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Solution
The fourth proportional to 134,202.12, 201,187.98 and 74,989.32 is: 112,419.61
Step by Step Solution
- Step 1: Write the proportion equation
134,202.12 : 201,187.98 = 74,989.32 : x - Step 2: Convert to fraction form
134,202.12/201,187.98 = 74,989.32/x - Step 3: Cross multiply
134,202.12x = 201,187.98 × 74,989.32 - Step 4: Simplify right side
134,202.12x = 15,086,949,812.37 - Step 5: Solve for x
x = 15,086,949,812.37/134,202.12 - Step 6: Final answer
x = 112,419.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.