Finding the Fourth Proportional to 118,931.84, 178,416.08 and 40,039.88
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Solution
The fourth proportional to 118,931.84, 178,416.08 and 40,039.88 is: 60,065.99
Step by Step Solution
- Step 1: Write the proportion equation
118,931.84 : 178,416.08 = 40,039.88 : x - Step 2: Convert to fraction form
118,931.84/178,416.08 = 40,039.88/x - Step 3: Cross multiply
118,931.84x = 178,416.08 × 40,039.88 - Step 4: Simplify right side
118,931.84x = 7,143,758,433.27 - Step 5: Solve for x
x = 7,143,758,433.27/118,931.84 - Step 6: Final answer
x = 60,065.99
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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.