Finding the Fourth Proportional to 121,817.08, 168,106.80 and 68,101.84
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Solution
The fourth proportional to 121,817.08, 168,106.80 and 68,101.84 is: 93,980.11
Step by Step Solution
- Step 1: Write the proportion equation
121,817.08 : 168,106.80 = 68,101.84 : x - Step 2: Convert to fraction form
121,817.08/168,106.80 = 68,101.84/x - Step 3: Cross multiply
121,817.08x = 168,106.80 × 68,101.84 - Step 4: Simplify right side
121,817.08x = 11,448,382,396.51 - Step 5: Solve for x
x = 11,448,382,396.51/121,817.08 - Step 6: Final answer
x = 93,980.11
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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.