Finding the Fourth Proportional to 140,119.18, 193,369.13 and 76,460.47
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Solution
The fourth proportional to 140,119.18, 193,369.13 and 76,460.47 is: 105,517.99
Step by Step Solution
- Step 1: Write the proportion equation
140,119.18 : 193,369.13 = 76,460.47 : x - Step 2: Convert to fraction form
140,119.18/193,369.13 = 76,460.47/x - Step 3: Cross multiply
140,119.18x = 193,369.13 × 76,460.47 - Step 4: Simplify right side
140,119.18x = 14,785,094,079.87 - Step 5: Solve for x
x = 14,785,094,079.87/140,119.18 - Step 6: Final answer
x = 105,517.99
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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.