Finding the Fourth Proportional to 118,226.70, 176,908.05 and 87,122.70
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Solution
The fourth proportional to 118,226.70, 176,908.05 and 87,122.70 is: 130,365.70
Step by Step Solution
- Step 1: Write the proportion equation
118,226.70 : 176,908.05 = 87,122.70 : x - Step 2: Convert to fraction form
118,226.70/176,908.05 = 87,122.70/x - Step 3: Cross multiply
118,226.70x = 176,908.05 × 87,122.70 - Step 4: Simplify right side
118,226.70x = 15,412,706,967.74 - Step 5: Solve for x
x = 15,412,706,967.74/118,226.70 - Step 6: Final answer
x = 130,365.70
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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.