Finding the Fourth Proportional to 125,690.88, 188,271.36 and 86,062.08
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Solution
The fourth proportional to 125,690.88, 188,271.36 and 86,062.08 is: 128,911.70
Step by Step Solution
- Step 1: Write the proportion equation
125,690.88 : 188,271.36 = 86,062.08 : x - Step 2: Convert to fraction form
125,690.88/188,271.36 = 86,062.08/x - Step 3: Cross multiply
125,690.88x = 188,271.36 × 86,062.08 - Step 4: Simplify right side
125,690.88x = 16,203,024,846.03 - Step 5: Solve for x
x = 16,203,024,846.03/125,690.88 - Step 6: Final answer
x = 128,911.70
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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.