Finding the Fourth Proportional to 133,079.54, 183,649.84 and 76,490.78
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Solution
The fourth proportional to 133,079.54, 183,649.84 and 76,490.78 is: 105,557.32
Step by Step Solution
- Step 1: Write the proportion equation
133,079.54 : 183,649.84 = 76,490.78 : x - Step 2: Convert to fraction form
133,079.54/183,649.84 = 76,490.78/x - Step 3: Cross multiply
133,079.54x = 183,649.84 × 76,490.78 - Step 4: Simplify right side
133,079.54x = 14,047,519,508.48 - Step 5: Solve for x
x = 14,047,519,508.48/133,079.54 - Step 6: Final answer
x = 105,557.32
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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.