Finding the Fourth Proportional to 159,434.01, 220,018.21 and 87,813.88
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Solution
The fourth proportional to 159,434.01, 220,018.21 and 87,813.88 is: 121,182.75
Step by Step Solution
- Step 1: Write the proportion equation
159,434.01 : 220,018.21 = 87,813.88 : x - Step 2: Convert to fraction form
159,434.01/220,018.21 = 87,813.88/x - Step 3: Cross multiply
159,434.01x = 220,018.21 × 87,813.88 - Step 4: Simplify right side
159,434.01x = 19,320,651,921.17 - Step 5: Solve for x
x = 19,320,651,921.17/159,434.01 - Step 6: Final answer
x = 121,182.75
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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.