Finding the Fourth Proportional to 104,397.84, 144,131.40 and 68,647.68
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Solution
The fourth proportional to 104,397.84, 144,131.40 and 68,647.68 is: 94,774.82
Step by Step Solution
- Step 1: Write the proportion equation
104,397.84 : 144,131.40 = 68,647.68 : x - Step 2: Convert to fraction form
104,397.84/144,131.40 = 68,647.68/x - Step 3: Cross multiply
104,397.84x = 144,131.40 × 68,647.68 - Step 4: Simplify right side
104,397.84x = 9,894,286,225.15 - Step 5: Solve for x
x = 9,894,286,225.15/104,397.84 - Step 6: Final answer
x = 94,774.82
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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.