Finding the Fourth Proportional to 104,743.76, 144,545.16 and 68,985.68
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Solution
The fourth proportional to 104,743.76, 144,545.16 and 68,985.68 is: 95,199.43
Step by Step Solution
- Step 1: Write the proportion equation
104,743.76 : 144,545.16 = 68,985.68 : x - Step 2: Convert to fraction form
104,743.76/144,545.16 = 68,985.68/x - Step 3: Cross multiply
104,743.76x = 144,545.16 × 68,985.68 - Step 4: Simplify right side
104,743.76x = 9,971,546,153.31 - Step 5: Solve for x
x = 9,971,546,153.31/104,743.76 - Step 6: Final answer
x = 95,199.43
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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.