Finding the Fourth Proportional to 122,312.20, 183,468.30 and 88,961.80
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Solution
The fourth proportional to 122,312.20, 183,468.30 and 88,961.80 is: 133,442.70
Step by Step Solution
- Step 1: Write the proportion equation
122,312.20 : 183,468.30 = 88,961.80 : x - Step 2: Convert to fraction form
122,312.20/183,468.30 = 88,961.80/x - Step 3: Cross multiply
122,312.20x = 183,468.30 × 88,961.80 - Step 4: Simplify right side
122,312.20x = 16,321,670,210.94 - Step 5: Solve for x
x = 16,321,670,210.94/122,312.20 - Step 6: Final answer
x = 133,442.70
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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.