Finding the Fourth Proportional to 159,010.09, 219,439.19 and 87,392.65
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Solution
The fourth proportional to 159,010.09, 219,439.19 and 87,392.65 is: 120,604.75
Step by Step Solution
- Step 1: Write the proportion equation
159,010.09 : 219,439.19 = 87,392.65 : x - Step 2: Convert to fraction form
159,010.09/219,439.19 = 87,392.65/x - Step 3: Cross multiply
159,010.09x = 219,439.19 × 87,392.65 - Step 4: Simplify right side
159,010.09x = 19,177,371,890.99 - Step 5: Solve for x
x = 19,177,371,890.99/159,010.09 - Step 6: Final answer
x = 120,604.75
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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.