Finding the Fourth Proportional to 159,575.28, 220,215.42 and 87,958.08
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Solution
The fourth proportional to 159,575.28, 220,215.42 and 87,958.08 is: 121,383.00
Step by Step Solution
- Step 1: Write the proportion equation
159,575.28 : 220,215.42 = 87,958.08 : x - Step 2: Convert to fraction form
159,575.28/220,215.42 = 87,958.08/x - Step 3: Cross multiply
159,575.28x = 220,215.42 × 87,958.08 - Step 4: Simplify right side
159,575.28x = 19,369,725,529.59 - Step 5: Solve for x
x = 19,369,725,529.59/159,575.28 - Step 6: Final answer
x = 121,383.00
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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.