Finding the Fourth Proportional to 118,880.08, 178,329.40 and 39,993.68
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Solution
The fourth proportional to 118,880.08, 178,329.40 and 39,993.68 is: 59,993.64
Step by Step Solution
- Step 1: Write the proportion equation
118,880.08 : 178,329.40 = 39,993.68 : x - Step 2: Convert to fraction form
118,880.08/178,329.40 = 39,993.68/x - Step 3: Cross multiply
118,880.08x = 178,329.40 × 39,993.68 - Step 4: Simplify right side
118,880.08x = 7,132,048,958.19 - Step 5: Solve for x
x = 7,132,048,958.19/118,880.08 - Step 6: Final answer
x = 59,993.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.