Finding the Fourth Proportional to 153,971.70, 230,957.55 and 71,027.70
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Solution
The fourth proportional to 153,971.70, 230,957.55 and 71,027.70 is: 106,541.55
Step by Step Solution
- Step 1: Write the proportion equation
153,971.70 : 230,957.55 = 71,027.70 : x - Step 2: Convert to fraction form
153,971.70/230,957.55 = 71,027.70/x - Step 3: Cross multiply
153,971.70x = 230,957.55 × 71,027.70 - Step 4: Simplify right side
153,971.70x = 16,404,383,574.14 - Step 5: Solve for x
x = 16,404,383,574.14/153,971.70 - Step 6: Final answer
x = 106,541.55
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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.