Finding the Fourth Proportional to 124,292.20, 186,438.30 and 113,405.80
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Solution
The fourth proportional to 124,292.20, 186,438.30 and 113,405.80 is: 170,108.70
Step by Step Solution
- Step 1: Write the proportion equation
124,292.20 : 186,438.30 = 113,405.80 : x - Step 2: Convert to fraction form
124,292.20/186,438.30 = 113,405.80/x - Step 3: Cross multiply
124,292.20x = 186,438.30 × 113,405.80 - Step 4: Simplify right side
124,292.20x = 21,143,184,562.14 - Step 5: Solve for x
x = 21,143,184,562.14/124,292.20 - Step 6: Final answer
x = 170,108.70
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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.