Finding the Fourth Proportional to 138,023.13, 207,011.21 and 44,528.88
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Solution
The fourth proportional to 138,023.13, 207,011.21 and 44,528.88 is: 66,785.74
Step by Step Solution
- Step 1: Write the proportion equation
138,023.13 : 207,011.21 = 44,528.88 : x - Step 2: Convert to fraction form
138,023.13/207,011.21 = 44,528.88/x - Step 3: Cross multiply
138,023.13x = 207,011.21 × 44,528.88 - Step 4: Simplify right side
138,023.13x = 9,217,977,106.10 - Step 5: Solve for x
x = 9,217,977,106.10/138,023.13 - Step 6: Final answer
x = 66,785.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.