Finding the Fourth Proportional to 131,794.29, 181,889.15 and 75,214.17
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Solution
The fourth proportional to 131,794.29, 181,889.15 and 75,214.17 is: 103,802.99
Step by Step Solution
- Step 1: Write the proportion equation
131,794.29 : 181,889.15 = 75,214.17 : x - Step 2: Convert to fraction form
131,794.29/181,889.15 = 75,214.17/x - Step 3: Cross multiply
131,794.29x = 181,889.15 × 75,214.17 - Step 4: Simplify right side
131,794.29x = 13,680,641,449.26 - Step 5: Solve for x
x = 13,680,641,449.26/131,794.29 - Step 6: Final answer
x = 103,802.99
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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.