Finding the Fourth Proportional to 155,130.69, 232,766.21 and 79,190.00
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Solution
The fourth proportional to 155,130.69, 232,766.21 and 79,190.00 is: 118,820.82
Step by Step Solution
- Step 1: Write the proportion equation
155,130.69 : 232,766.21 = 79,190.00 : x - Step 2: Convert to fraction form
155,130.69/232,766.21 = 79,190.00/x - Step 3: Cross multiply
155,130.69x = 232,766.21 × 79,190.00 - Step 4: Simplify right side
155,130.69x = 18,432,756,076.92 - Step 5: Solve for x
x = 18,432,756,076.92/155,130.69 - Step 6: Final answer
x = 118,820.82
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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.