Finding the Fourth Proportional to 134,546.21, 201,428.35 and 78,214.55
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Solution
The fourth proportional to 134,546.21, 201,428.35 and 78,214.55 is: 117,094.56
Step by Step Solution
- Step 1: Write the proportion equation
134,546.21 : 201,428.35 = 78,214.55 : x - Step 2: Convert to fraction form
134,546.21/201,428.35 = 78,214.55/x - Step 3: Cross multiply
134,546.21x = 201,428.35 × 78,214.55 - Step 4: Simplify right side
134,546.21x = 15,754,628,060.53 - Step 5: Solve for x
x = 15,754,628,060.53/134,546.21 - Step 6: Final answer
x = 117,094.56
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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.