Finding the Fourth Proportional to 154,746.16, 213,642.88 and 101,120.92
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Solution
The fourth proportional to 154,746.16, 213,642.88 and 101,120.92 is: 139,607.76
Step by Step Solution
- Step 1: Write the proportion equation
154,746.16 : 213,642.88 = 101,120.92 : x - Step 2: Convert to fraction form
154,746.16/213,642.88 = 101,120.92/x - Step 3: Cross multiply
154,746.16x = 213,642.88 × 101,120.92 - Step 4: Simplify right side
154,746.16x = 21,603,764,577.05 - Step 5: Solve for x
x = 21,603,764,577.05/154,746.16 - Step 6: Final answer
x = 139,607.76
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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.