Finding the Fourth Proportional to 118,931.95, 178,048.00 and 79,390.99
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Solution
The fourth proportional to 118,931.95, 178,048.00 and 79,390.99 is: 118,852.90
Step by Step Solution
- Step 1: Write the proportion equation
118,931.95 : 178,048.00 = 79,390.99 : x - Step 2: Convert to fraction form
118,931.95/178,048.00 = 79,390.99/x - Step 3: Cross multiply
118,931.95x = 178,048.00 × 79,390.99 - Step 4: Simplify right side
118,931.95x = 14,135,406,343.92 - Step 5: Solve for x
x = 14,135,406,343.92/118,931.95 - Step 6: Final answer
x = 118,852.90
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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.