Finding the Fourth Proportional to 122,140.80, 183,211.20 and 117,475.20
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Solution
The fourth proportional to 122,140.80, 183,211.20 and 117,475.20 is: 176,212.80
Step by Step Solution
- Step 1: Write the proportion equation
122,140.80 : 183,211.20 = 117,475.20 : x - Step 2: Convert to fraction form
122,140.80/183,211.20 = 117,475.20/x - Step 3: Cross multiply
122,140.80x = 183,211.20 × 117,475.20 - Step 4: Simplify right side
122,140.80x = 21,522,772,362.24 - Step 5: Solve for x
x = 21,522,772,362.24/122,140.80 - Step 6: Final answer
x = 176,212.80
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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.