Finding the Fourth Proportional to 118,701.80, 178,052.70 and 56,493.80
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Solution
The fourth proportional to 118,701.80, 178,052.70 and 56,493.80 is: 84,740.70
Step by Step Solution
- Step 1: Write the proportion equation
118,701.80 : 178,052.70 = 56,493.80 : x - Step 2: Convert to fraction form
118,701.80/178,052.70 = 56,493.80/x - Step 3: Cross multiply
118,701.80x = 178,052.70 × 56,493.80 - Step 4: Simplify right side
118,701.80x = 10,058,873,623.26 - Step 5: Solve for x
x = 10,058,873,623.26/118,701.80 - Step 6: Final answer
x = 84,740.70
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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.