Finding the Fourth Proportional to 97,616.76, 134,787.48 and 74,919.84
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Solution
The fourth proportional to 97,616.76, 134,787.48 and 74,919.84 is: 103,447.98
Step by Step Solution
- Step 1: Write the proportion equation
97,616.76 : 134,787.48 = 74,919.84 : x - Step 2: Convert to fraction form
97,616.76/134,787.48 = 74,919.84/x - Step 3: Cross multiply
97,616.76x = 134,787.48 × 74,919.84 - Step 4: Simplify right side
97,616.76x = 10,098,256,435.60 - Step 5: Solve for x
x = 10,098,256,435.60/97,616.76 - Step 6: Final answer
x = 103,447.98
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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.