Finding the Fourth Proportional to 124,781.11, 172,197.70 and 68,192.48
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Solution
The fourth proportional to 124,781.11, 172,197.70 and 68,192.48 is: 94,105.50
Step by Step Solution
- Step 1: Write the proportion equation
124,781.11 : 172,197.70 = 68,192.48 : x - Step 2: Convert to fraction form
124,781.11/172,197.70 = 68,192.48/x - Step 3: Cross multiply
124,781.11x = 172,197.70 × 68,192.48 - Step 4: Simplify right side
124,781.11x = 11,742,588,473.31 - Step 5: Solve for x
x = 11,742,588,473.31/124,781.11 - Step 6: Final answer
x = 94,105.50
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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.