Finding the Fourth Proportional to 119,880.68, 165,437.10 and 66,167.96
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Solution
The fourth proportional to 119,880.68, 165,437.10 and 66,167.96 is: 91,312.75
Step by Step Solution
- Step 1: Write the proportion equation
119,880.68 : 165,437.10 = 66,167.96 : x - Step 2: Convert to fraction form
119,880.68/165,437.10 = 66,167.96/x - Step 3: Cross multiply
119,880.68x = 165,437.10 × 66,167.96 - Step 4: Simplify right side
119,880.68x = 10,946,634,588.13 - Step 5: Solve for x
x = 10,946,634,588.13/119,880.68 - Step 6: Final answer
x = 91,312.75
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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.