Finding the Fourth Proportional to 156,782.11, 235,475.70 and 134,343.49
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Solution
The fourth proportional to 156,782.11, 235,475.70 and 134,343.49 is: 201,774.47
Step by Step Solution
- Step 1: Write the proportion equation
156,782.11 : 235,475.70 = 134,343.49 : x - Step 2: Convert to fraction form
156,782.11/235,475.70 = 134,343.49/x - Step 3: Cross multiply
156,782.11x = 235,475.70 × 134,343.49 - Step 4: Simplify right side
156,782.11x = 31,634,627,348.19 - Step 5: Solve for x
x = 31,634,627,348.19/156,782.11 - Step 6: Final answer
x = 201,774.47
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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.