Finding the Fourth Proportional to 163,430.28, 225,383.99 and 106,009.79
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Solution
The fourth proportional to 163,430.28, 225,383.99 and 106,009.79 is: 146,196.33
Step by Step Solution
- Step 1: Write the proportion equation
163,430.28 : 225,383.99 = 106,009.79 : x - Step 2: Convert to fraction form
163,430.28/225,383.99 = 106,009.79/x - Step 3: Cross multiply
163,430.28x = 225,383.99 × 106,009.79 - Step 4: Simplify right side
163,430.28x = 23,892,907,792.29 - Step 5: Solve for x
x = 23,892,907,792.29/163,430.28 - Step 6: Final answer
x = 146,196.33
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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.