Finding the Fourth Proportional to 134,440.52, 201,438.88 and 78,122.56
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Solution
The fourth proportional to 134,440.52, 201,438.88 and 78,122.56 is: 117,054.90
Step by Step Solution
- Step 1: Write the proportion equation
134,440.52 : 201,438.88 = 78,122.56 : x - Step 2: Convert to fraction form
134,440.52/201,438.88 = 78,122.56/x - Step 3: Cross multiply
134,440.52x = 201,438.88 × 78,122.56 - Step 4: Simplify right side
134,440.52x = 15,736,920,989.13 - Step 5: Solve for x
x = 15,736,920,989.13/134,440.52 - Step 6: Final answer
x = 117,054.90
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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.