Finding the Fourth Proportional to 126,967.84, 175,204.62 and 72,519.74
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Solution
The fourth proportional to 126,967.84, 175,204.62 and 72,519.74 is: 100,070.96
Step by Step Solution
- Step 1: Write the proportion equation
126,967.84 : 175,204.62 = 72,519.74 : x - Step 2: Convert to fraction form
126,967.84/175,204.62 = 72,519.74/x - Step 3: Cross multiply
126,967.84x = 175,204.62 × 72,519.74 - Step 4: Simplify right side
126,967.84x = 12,705,793,270.19 - Step 5: Solve for x
x = 12,705,793,270.19/126,967.84 - Step 6: Final answer
x = 100,070.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.