Finding the Fourth Proportional to 168,369.90, 232,351.74 and 91,889.58
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Solution
The fourth proportional to 168,369.90, 232,351.74 and 91,889.58 is: 126,808.32
Step by Step Solution
- Step 1: Write the proportion equation
168,369.90 : 232,351.74 = 91,889.58 : x - Step 2: Convert to fraction form
168,369.90/232,351.74 = 91,889.58/x - Step 3: Cross multiply
168,369.90x = 232,351.74 × 91,889.58 - Step 4: Simplify right side
168,369.90x = 21,350,703,800.87 - Step 5: Solve for x
x = 21,350,703,800.87/168,369.90 - Step 6: Final answer
x = 126,808.32
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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.