Finding the Fourth Proportional to 134,468.94, 201,639.08 and 78,325.07
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Solution
The fourth proportional to 134,468.94, 201,639.08 and 78,325.07 is: 117,450.12
Step by Step Solution
- Step 1: Write the proportion equation
134,468.94 : 201,639.08 = 78,325.07 : x - Step 2: Convert to fraction form
134,468.94/201,639.08 = 78,325.07/x - Step 3: Cross multiply
134,468.94x = 201,639.08 × 78,325.07 - Step 4: Simplify right side
134,468.94x = 15,793,393,655.91 - Step 5: Solve for x
x = 15,793,393,655.91/134,468.94 - Step 6: Final answer
x = 117,450.12
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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.