Finding the Fourth Proportional to 156,110.36, 215,207.01 and 102,301.99
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Solution
The fourth proportional to 156,110.36, 215,207.01 and 102,301.99 is: 141,029.11
Step by Step Solution
- Step 1: Write the proportion equation
156,110.36 : 215,207.01 = 102,301.99 : x - Step 2: Convert to fraction form
156,110.36/215,207.01 = 102,301.99/x - Step 3: Cross multiply
156,110.36x = 215,207.01 × 102,301.99 - Step 4: Simplify right side
156,110.36x = 22,016,104,846.93 - Step 5: Solve for x
x = 22,016,104,846.93/156,110.36 - Step 6: Final answer
x = 141,029.11
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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.