Finding the Fourth Proportional to 125,106.19, 187,188.44 and 87,739.20
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Solution
The fourth proportional to 125,106.19, 187,188.44 and 87,739.20 is: 131,278.59
Step by Step Solution
- Step 1: Write the proportion equation
125,106.19 : 187,188.44 = 87,739.20 : x - Step 2: Convert to fraction form
125,106.19/187,188.44 = 87,739.20/x - Step 3: Cross multiply
125,106.19x = 187,188.44 × 87,739.20 - Step 4: Simplify right side
125,106.19x = 16,423,763,536.15 - Step 5: Solve for x
x = 16,423,763,536.15/125,106.19 - Step 6: Final answer
x = 131,278.59
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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.