Finding the Fourth Proportional to 130,129.26, 179,558.52 and 73,519.98
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Solution
The fourth proportional to 130,129.26, 179,558.52 and 73,519.98 is: 101,446.35
Step by Step Solution
- Step 1: Write the proportion equation
130,129.26 : 179,558.52 = 73,519.98 : x - Step 2: Convert to fraction form
130,129.26/179,558.52 = 73,519.98/x - Step 3: Cross multiply
130,129.26x = 179,558.52 × 73,519.98 - Step 4: Simplify right side
130,129.26x = 13,201,138,799.23 - Step 5: Solve for x
x = 13,201,138,799.23/130,129.26 - Step 6: Final answer
x = 101,446.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.