Finding the Fourth Proportional to 106,785.60, 160,129.80 and 47,590.80
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Solution
The fourth proportional to 106,785.60, 160,129.80 and 47,590.80 is: 71,364.54
Step by Step Solution
- Step 1: Write the proportion equation
106,785.60 : 160,129.80 = 47,590.80 : x - Step 2: Convert to fraction form
106,785.60/160,129.80 = 47,590.80/x - Step 3: Cross multiply
106,785.60x = 160,129.80 × 47,590.80 - Step 4: Simplify right side
106,785.60x = 7,620,705,285.84 - Step 5: Solve for x
x = 7,620,705,285.84/106,785.60 - Step 6: Final answer
x = 71,364.54
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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.