Finding the Fourth Proportional to 141,438.98, 195,184.14 and 77,772.98
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Solution
The fourth proportional to 141,438.98, 195,184.14 and 77,772.98 is: 107,325.80
Step by Step Solution
- Step 1: Write the proportion equation
141,438.98 : 195,184.14 = 77,772.98 : x - Step 2: Convert to fraction form
141,438.98/195,184.14 = 77,772.98/x - Step 3: Cross multiply
141,438.98x = 195,184.14 × 77,772.98 - Step 4: Simplify right side
141,438.98x = 15,180,052,216.54 - Step 5: Solve for x
x = 15,180,052,216.54/141,438.98 - Step 6: Final answer
x = 107,325.80
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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.