Finding the Fourth Proportional to 121,924.69, 168,252.14 and 68,208.53
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Solution
The fourth proportional to 121,924.69, 168,252.14 and 68,208.53 is: 94,125.57
Step by Step Solution
- Step 1: Write the proportion equation
121,924.69 : 168,252.14 = 68,208.53 : x - Step 2: Convert to fraction form
121,924.69/168,252.14 = 68,208.53/x - Step 3: Cross multiply
121,924.69x = 168,252.14 × 68,208.53 - Step 4: Simplify right side
121,924.69x = 11,476,231,030.76 - Step 5: Solve for x
x = 11,476,231,030.76/121,924.69 - Step 6: Final answer
x = 94,125.57
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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.