Finding the Fourth Proportional to 139,753.36, 192,853.20 and 76,090.96
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Solution
The fourth proportional to 139,753.36, 192,853.20 and 76,090.96 is: 105,002.02
Step by Step Solution
- Step 1: Write the proportion equation
139,753.36 : 192,853.20 = 76,090.96 : x - Step 2: Convert to fraction form
139,753.36/192,853.20 = 76,090.96/x - Step 3: Cross multiply
139,753.36x = 192,853.20 × 76,090.96 - Step 4: Simplify right side
139,753.36x = 14,674,385,127.07 - Step 5: Solve for x
x = 14,674,385,127.07/139,753.36 - Step 6: Final answer
x = 105,002.02
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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.