Finding the Fourth Proportional to 149,682.12, 206,489.68 and 101,300.95
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Solution
The fourth proportional to 149,682.12, 206,489.68 and 101,300.95 is: 139,746.82
Step by Step Solution
- Step 1: Write the proportion equation
149,682.12 : 206,489.68 = 101,300.95 : x - Step 2: Convert to fraction form
149,682.12/206,489.68 = 101,300.95/x - Step 3: Cross multiply
149,682.12x = 206,489.68 × 101,300.95 - Step 4: Simplify right side
149,682.12x = 20,917,600,749.20 - Step 5: Solve for x
x = 20,917,600,749.20/149,682.12 - Step 6: Final answer
x = 139,746.82
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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.