Finding the Fourth Proportional to 107,970.71, 161,623.83 and 70,449.99
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Solution
The fourth proportional to 107,970.71, 161,623.83 and 70,449.99 is: 105,458.21
Step by Step Solution
- Step 1: Write the proportion equation
107,970.71 : 161,623.83 = 70,449.99 : x - Step 2: Convert to fraction form
107,970.71/161,623.83 = 70,449.99/x - Step 3: Cross multiply
107,970.71x = 161,623.83 × 70,449.99 - Step 4: Simplify right side
107,970.71x = 11,386,397,207.26 - Step 5: Solve for x
x = 11,386,397,207.26/107,970.71 - Step 6: Final answer
x = 105,458.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.