Finding the Fourth Proportional to 149,903.12, 206,879.40 and 82,848.08
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Solution
The fourth proportional to 149,903.12, 206,879.40 and 82,848.08 is: 114,337.59
Step by Step Solution
- Step 1: Write the proportion equation
149,903.12 : 206,879.40 = 82,848.08 : x - Step 2: Convert to fraction form
149,903.12/206,879.40 = 82,848.08/x - Step 3: Cross multiply
149,903.12x = 206,879.40 × 82,848.08 - Step 4: Simplify right side
149,903.12x = 17,139,561,081.55 - Step 5: Solve for x
x = 17,139,561,081.55/149,903.12 - Step 6: Final answer
x = 114,337.59
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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.