Finding the Fourth Proportional to 158,789.07, 219,129.84 and 87,169.68
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Solution
The fourth proportional to 158,789.07, 219,129.84 and 87,169.68 is: 120,294.67
Step by Step Solution
- Step 1: Write the proportion equation
158,789.07 : 219,129.84 = 87,169.68 : x - Step 2: Convert to fraction form
158,789.07/219,129.84 = 87,169.68/x - Step 3: Cross multiply
158,789.07x = 219,129.84 × 87,169.68 - Step 4: Simplify right side
158,789.07x = 19,101,478,031.25 - Step 5: Solve for x
x = 19,101,478,031.25/158,789.07 - Step 6: Final answer
x = 120,294.67
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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.