Finding the Fourth Proportional to 125,269.80, 187,467.30 and 85,903.80
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Solution
The fourth proportional to 125,269.80, 187,467.30 and 85,903.80 is: 128,555.75
Step by Step Solution
- Step 1: Write the proportion equation
125,269.80 : 187,467.30 = 85,903.80 : x - Step 2: Convert to fraction form
125,269.80/187,467.30 = 85,903.80/x - Step 3: Cross multiply
125,269.80x = 187,467.30 × 85,903.80 - Step 4: Simplify right side
125,269.80x = 16,104,153,445.74 - Step 5: Solve for x
x = 16,104,153,445.74/125,269.80 - Step 6: Final answer
x = 128,555.75
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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.