Finding the Fourth Proportional to 162,647.70, 243,971.55 and 121,175.70
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Solution
The fourth proportional to 162,647.70, 243,971.55 and 121,175.70 is: 181,763.55
Step by Step Solution
- Step 1: Write the proportion equation
162,647.70 : 243,971.55 = 121,175.70 : x - Step 2: Convert to fraction form
162,647.70/243,971.55 = 121,175.70/x - Step 3: Cross multiply
162,647.70x = 243,971.55 × 121,175.70 - Step 4: Simplify right side
162,647.70x = 29,563,423,351.34 - Step 5: Solve for x
x = 29,563,423,351.34/162,647.70 - Step 6: Final answer
x = 181,763.55
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1.5x scale
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.