Finding the Fourth Proportional to 129,652.08, 178,919.84 and 70,036.08
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Solution
The fourth proportional to 129,652.08, 178,919.84 and 70,036.08 is: 96,649.77
Step by Step Solution
- Step 1: Write the proportion equation
129,652.08 : 178,919.84 = 70,036.08 : x - Step 2: Convert to fraction form
129,652.08/178,919.84 = 70,036.08/x - Step 3: Cross multiply
129,652.08x = 178,919.84 × 70,036.08 - Step 4: Simplify right side
129,652.08x = 12,530,844,227.83 - Step 5: Solve for x
x = 12,530,844,227.83/129,652.08 - Step 6: Final answer
x = 96,649.77
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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.