Finding the Fourth Proportional to 121,813.24, 168,101.58 and 68,098.36
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Solution
The fourth proportional to 121,813.24, 168,101.58 and 68,098.36 is: 93,975.35
Step by Step Solution
- Step 1: Write the proportion equation
121,813.24 : 168,101.58 = 68,098.36 : x - Step 2: Convert to fraction form
121,813.24/168,101.58 = 68,098.36/x - Step 3: Cross multiply
121,813.24x = 168,101.58 × 68,098.36 - Step 4: Simplify right side
121,813.24x = 11,447,441,911.41 - Step 5: Solve for x
x = 11,447,441,911.41/121,813.24 - Step 6: Final answer
x = 93,975.35
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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.