Finding the Fourth Proportional to 107,945.19, 148,982.36 and 62,660.79
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Solution
The fourth proportional to 107,945.19, 148,982.36 and 62,660.79 is: 86,482.33
Step by Step Solution
- Step 1: Write the proportion equation
107,945.19 : 148,982.36 = 62,660.79 : x - Step 2: Convert to fraction form
107,945.19/148,982.36 = 62,660.79/x - Step 3: Cross multiply
107,945.19x = 148,982.36 × 62,660.79 - Step 4: Simplify right side
107,945.19x = 9,335,352,060.36 - Step 5: Solve for x
x = 9,335,352,060.36/107,945.19 - Step 6: Final answer
x = 86,482.33
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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.