Finding the Fourth Proportional to 119,788.11, 165,224.66 and 97,128.05
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Solution
The fourth proportional to 119,788.11, 165,224.66 and 97,128.05 is: 133,969.45
Step by Step Solution
- Step 1: Write the proportion equation
119,788.11 : 165,224.66 = 97,128.05 : x - Step 2: Convert to fraction form
119,788.11/165,224.66 = 97,128.05/x - Step 3: Cross multiply
119,788.11x = 165,224.66 × 97,128.05 - Step 4: Simplify right side
119,788.11x = 16,047,947,725.95 - Step 5: Solve for x
x = 16,047,947,725.95/119,788.11 - Step 6: Final answer
x = 133,969.45
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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.