Finding the Fourth Proportional to 159,154.26, 219,631.73 and 87,532.74
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Solution
The fourth proportional to 159,154.26, 219,631.73 and 87,532.74 is: 120,794.55
Step by Step Solution
- Step 1: Write the proportion equation
159,154.26 : 219,631.73 = 87,532.74 : x - Step 2: Convert to fraction form
159,154.26/219,631.73 = 87,532.74/x - Step 3: Cross multiply
159,154.26x = 219,631.73 × 87,532.74 - Step 4: Simplify right side
159,154.26x = 19,224,967,996.17 - Step 5: Solve for x
x = 19,224,967,996.17/159,154.26 - Step 6: Final answer
x = 120,794.55
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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.