Finding the Fourth Proportional to 120,934.70, 180,487.52 and 117,785.42
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Solution
The fourth proportional to 120,934.70, 180,487.52 and 117,785.42 is: 175,787.42
Step by Step Solution
- Step 1: Write the proportion equation
120,934.70 : 180,487.52 = 117,785.42 : x - Step 2: Convert to fraction form
120,934.70/180,487.52 = 117,785.42/x - Step 3: Cross multiply
120,934.70x = 180,487.52 × 117,785.42 - Step 4: Simplify right side
120,934.70x = 21,258,798,347.96 - Step 5: Solve for x
x = 21,258,798,347.96/120,934.70 - Step 6: Final answer
x = 175,787.42
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.