Finding the Fourth Proportional to 146,145.60, 219,109.05 and 79,660.80
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Solution
The fourth proportional to 146,145.60, 219,109.05 and 79,660.80 is: 119,431.60
Step by Step Solution
- Step 1: Write the proportion equation
146,145.60 : 219,109.05 = 79,660.80 : x - Step 2: Convert to fraction form
146,145.60/219,109.05 = 79,660.80/x - Step 3: Cross multiply
146,145.60x = 219,109.05 × 79,660.80 - Step 4: Simplify right side
146,145.60x = 17,454,402,210.24 - Step 5: Solve for x
x = 17,454,402,210.24/146,145.60 - Step 6: Final answer
x = 119,431.60
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1.5x scale
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.