Finding the Fourth Proportional to 154,528.12, 213,246.48 and 86,544.82
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Solution
The fourth proportional to 154,528.12, 213,246.48 and 86,544.82 is: 119,430.55
Step by Step Solution
- Step 1: Write the proportion equation
154,528.12 : 213,246.48 = 86,544.82 : x - Step 2: Convert to fraction form
154,528.12/213,246.48 = 86,544.82/x - Step 3: Cross multiply
154,528.12x = 213,246.48 × 86,544.82 - Step 4: Simplify right side
154,528.12x = 18,455,378,227.23 - Step 5: Solve for x
x = 18,455,378,227.23/154,528.12 - Step 6: Final answer
x = 119,430.55
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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.