Finding the Fourth Proportional to 121,811.02, 168,101.42 and 68,090.26
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Solution
The fourth proportional to 121,811.02, 168,101.42 and 68,090.26 is: 93,965.80
Step by Step Solution
- Step 1: Write the proportion equation
121,811.02 : 168,101.42 = 68,090.26 : x - Step 2: Convert to fraction form
121,811.02/168,101.42 = 68,090.26/x - Step 3: Cross multiply
121,811.02x = 168,101.42 × 68,090.26 - Step 4: Simplify right side
121,811.02x = 11,446,069,394.17 - Step 5: Solve for x
x = 11,446,069,394.17/121,811.02 - Step 6: Final answer
x = 93,965.80
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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.