Finding the Fourth Proportional to 122,235.69, 168,681.99 and 68,524.17
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Solution
The fourth proportional to 122,235.69, 168,681.99 and 68,524.17 is: 94,561.53
Step by Step Solution
- Step 1: Write the proportion equation
122,235.69 : 168,681.99 = 68,524.17 : x - Step 2: Convert to fraction form
122,235.69/168,681.99 = 68,524.17/x - Step 3: Cross multiply
122,235.69x = 168,681.99 × 68,524.17 - Step 4: Simplify right side
122,235.69x = 11,558,793,358.70 - Step 5: Solve for x
x = 11,558,793,358.70/122,235.69 - Step 6: Final answer
x = 94,561.53
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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.