Finding the Fourth Proportional to 163,422.09, 245,045.66 and 69,876.81
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Solution
The fourth proportional to 163,422.09, 245,045.66 and 69,876.81 is: 104,777.81
Step by Step Solution
- Step 1: Write the proportion equation
163,422.09 : 245,045.66 = 69,876.81 : x - Step 2: Convert to fraction form
163,422.09/245,045.66 = 69,876.81/x - Step 3: Cross multiply
163,422.09x = 245,045.66 × 69,876.81 - Step 4: Simplify right side
163,422.09x = 17,123,008,675.76 - Step 5: Solve for x
x = 17,123,008,675.76/163,422.09 - Step 6: Final answer
x = 104,777.81
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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.