Finding the Fourth Proportional to 158,760.36, 219,088.62 and 86,163.30
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Solution
The fourth proportional to 158,760.36, 219,088.62 and 86,163.30 is: 118,904.99
Step by Step Solution
- Step 1: Write the proportion equation
158,760.36 : 219,088.62 = 86,163.30 : x - Step 2: Convert to fraction form
158,760.36/219,088.62 = 86,163.30/x - Step 3: Cross multiply
158,760.36x = 219,088.62 × 86,163.30 - Step 4: Simplify right side
158,760.36x = 18,877,398,491.65 - Step 5: Solve for x
x = 18,877,398,491.65/158,760.36 - Step 6: Final answer
x = 118,904.99
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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.