Finding the Fourth Proportional to 118,871.21, 178,384.12 and 51,469.07
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Solution
The fourth proportional to 118,871.21, 178,384.12 and 51,469.07 is: 77,237.08
Step by Step Solution
- Step 1: Write the proportion equation
118,871.21 : 178,384.12 = 51,469.07 : x - Step 2: Convert to fraction form
118,871.21/178,384.12 = 51,469.07/x - Step 3: Cross multiply
118,871.21x = 178,384.12 × 51,469.07 - Step 4: Simplify right side
118,871.21x = 9,181,264,759.17 - Step 5: Solve for x
x = 9,181,264,759.17/118,871.21 - Step 6: Final answer
x = 77,237.08
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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.