Finding the Fourth Proportional to 152,921.67, 210,958.67 and 107,624.79
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Solution
The fourth proportional to 152,921.67, 210,958.67 and 107,624.79 is: 148,470.66
Step by Step Solution
- Step 1: Write the proportion equation
152,921.67 : 210,958.67 = 107,624.79 : x - Step 2: Convert to fraction form
152,921.67/210,958.67 = 107,624.79/x - Step 3: Cross multiply
152,921.67x = 210,958.67 × 107,624.79 - Step 4: Simplify right side
152,921.67x = 22,704,382,019.31 - Step 5: Solve for x
x = 22,704,382,019.31/152,921.67 - Step 6: Final answer
x = 148,470.66
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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.