Finding the Fourth Proportional to 121,823.07, 168,108.93 and 67,372.05
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Solution
The fourth proportional to 121,823.07, 168,108.93 and 67,372.05 is: 92,969.61
Step by Step Solution
- Step 1: Write the proportion equation
121,823.07 : 168,108.93 = 67,372.05 : x - Step 2: Convert to fraction form
121,823.07/168,108.93 = 67,372.05/x - Step 3: Cross multiply
121,823.07x = 168,108.93 × 67,372.05 - Step 4: Simplify right side
121,823.07x = 11,325,843,237.41 - Step 5: Solve for x
x = 11,325,843,237.41/121,823.07 - Step 6: Final answer
x = 92,969.61
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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.