Finding the Fourth Proportional to 146,121.60, 219,268.80 and 106,579.20
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Solution
The fourth proportional to 146,121.60, 219,268.80 and 106,579.20 is: 159,931.82
Step by Step Solution
- Step 1: Write the proportion equation
146,121.60 : 219,268.80 = 106,579.20 : x - Step 2: Convert to fraction form
146,121.60/219,268.80 = 106,579.20/x - Step 3: Cross multiply
146,121.60x = 219,268.80 × 106,579.20 - Step 4: Simplify right side
146,121.60x = 23,369,493,288.96 - Step 5: Solve for x
x = 23,369,493,288.96/146,121.60 - Step 6: Final answer
x = 159,931.82
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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.