Finding the Fourth Proportional to 143,094.65, 197,460.74 and 79,427.44
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Solution
The fourth proportional to 143,094.65, 197,460.74 and 79,427.44 is: 109,604.38
Step by Step Solution
- Step 1: Write the proportion equation
143,094.65 : 197,460.74 = 79,427.44 : x - Step 2: Convert to fraction form
143,094.65/197,460.74 = 79,427.44/x - Step 3: Cross multiply
143,094.65x = 197,460.74 × 79,427.44 - Step 4: Simplify right side
143,094.65x = 15,683,800,783.62 - Step 5: Solve for x
x = 15,683,800,783.62/143,094.65 - Step 6: Final answer
x = 109,604.38
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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.