Finding the Fourth Proportional to 154,539.69, 213,290.48 and 106,101.99
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Solution
The fourth proportional to 154,539.69, 213,290.48 and 106,101.99 is: 146,438.40
Step by Step Solution
- Step 1: Write the proportion equation
154,539.69 : 213,290.48 = 106,101.99 : x - Step 2: Convert to fraction form
154,539.69/213,290.48 = 106,101.99/x - Step 3: Cross multiply
154,539.69x = 213,290.48 × 106,101.99 - Step 4: Simplify right side
154,539.69x = 22,630,544,376.06 - Step 5: Solve for x
x = 22,630,544,376.06/154,539.69 - Step 6: Final answer
x = 146,438.40
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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.