Finding the Fourth Proportional to 118,745.64, 178,137.90 and 56,395.08
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Solution
The fourth proportional to 118,745.64, 178,137.90 and 56,395.08 is: 84,601.85
Step by Step Solution
- Step 1: Write the proportion equation
118,745.64 : 178,137.90 = 56,395.08 : x - Step 2: Convert to fraction form
118,745.64/178,137.90 = 56,395.08/x - Step 3: Cross multiply
118,745.64x = 178,137.90 × 56,395.08 - Step 4: Simplify right side
118,745.64x = 10,046,101,121.53 - Step 5: Solve for x
x = 10,046,101,121.53/118,745.64 - Step 6: Final answer
x = 84,601.85
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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.