Finding the Fourth Proportional to 156,370.56, 215,883.84 and 102,749.44
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Solution
The fourth proportional to 156,370.56, 215,883.84 and 102,749.44 is: 141,854.99
Step by Step Solution
- Step 1: Write the proportion equation
156,370.56 : 215,883.84 = 102,749.44 : x - Step 2: Convert to fraction form
156,370.56/215,883.84 = 102,749.44/x - Step 3: Cross multiply
156,370.56x = 215,883.84 × 102,749.44 - Step 4: Simplify right side
156,370.56x = 22,181,943,665.05 - Step 5: Solve for x
x = 22,181,943,665.05/156,370.56 - Step 6: Final answer
x = 141,854.99
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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.