Finding the Fourth Proportional to 125,130.96, 187,225.56 and 87,763.95
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Solution
The fourth proportional to 125,130.96, 187,225.56 and 87,763.95 is: 131,315.66
Step by Step Solution
- Step 1: Write the proportion equation
125,130.96 : 187,225.56 = 87,763.95 : x - Step 2: Convert to fraction form
125,130.96/187,225.56 = 87,763.95/x - Step 3: Cross multiply
125,130.96x = 187,225.56 × 87,763.95 - Step 4: Simplify right side
125,130.96x = 16,431,654,686.56 - Step 5: Solve for x
x = 16,431,654,686.56/125,130.96 - Step 6: Final answer
x = 131,315.66
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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.