Finding the Fourth Proportional to 124,762.05, 172,171.44 and 71,047.09
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Solution
The fourth proportional to 124,762.05, 172,171.44 and 71,047.09 is: 98,044.88
Step by Step Solution
- Step 1: Write the proportion equation
124,762.05 : 172,171.44 = 71,047.09 : x - Step 2: Convert to fraction form
124,762.05/172,171.44 = 71,047.09/x - Step 3: Cross multiply
124,762.05x = 172,171.44 × 71,047.09 - Step 4: Simplify right side
124,762.05x = 12,232,280,008.32 - Step 5: Solve for x
x = 12,232,280,008.32/124,762.05 - Step 6: Final answer
x = 98,044.88
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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.