Finding the Fourth Proportional to 159,343.95, 219,886.07 and 91,357.65
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Solution
The fourth proportional to 159,343.95, 219,886.07 and 91,357.65 is: 126,068.63
Step by Step Solution
- Step 1: Write the proportion equation
159,343.95 : 219,886.07 = 91,357.65 : x - Step 2: Convert to fraction form
159,343.95/219,886.07 = 91,357.65/x - Step 3: Cross multiply
159,343.95x = 219,886.07 × 91,357.65 - Step 4: Simplify right side
159,343.95x = 20,088,274,166.15 - Step 5: Solve for x
x = 20,088,274,166.15/159,343.95 - Step 6: Final answer
x = 126,068.63
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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.