Finding the Fourth Proportional to 144,707.76, 216,886.68 and 74,548.80
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Solution
The fourth proportional to 144,707.76, 216,886.68 and 74,548.80 is: 111,733.07
Step by Step Solution
- Step 1: Write the proportion equation
144,707.76 : 216,886.68 = 74,548.80 : x - Step 2: Convert to fraction form
144,707.76/216,886.68 = 74,548.80/x - Step 3: Cross multiply
144,707.76x = 216,886.68 × 74,548.80 - Step 4: Simplify right side
144,707.76x = 16,168,641,729.98 - Step 5: Solve for x
x = 16,168,641,729.98/144,707.76 - Step 6: Final answer
x = 111,733.07
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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.