Finding the Fourth Proportional to 158,119.65, 218,270.04 and 107,202.12
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Solution
The fourth proportional to 158,119.65, 218,270.04 and 107,202.12 is: 147,982.94
Step by Step Solution
- Step 1: Write the proportion equation
158,119.65 : 218,270.04 = 107,202.12 : x - Step 2: Convert to fraction form
158,119.65/218,270.04 = 107,202.12/x - Step 3: Cross multiply
158,119.65x = 218,270.04 × 107,202.12 - Step 4: Simplify right side
158,119.65x = 23,399,011,020.48 - Step 5: Solve for x
x = 23,399,011,020.48/158,119.65 - Step 6: Final answer
x = 147,982.94
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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.